feat: add the ConsenSys zkEVM (Linea) as a default network (#17875)

* feat: add the consensys zkEVM as a default network

* fix: change infuraNetworkStatus in navigate-txs file

* fix: remove account tracker for zkEVM + remove zkEVM from infura list

* fix: change consensys zkevm name to linea + change rpc url for linea network

* fix: rebase conflicts

* feat: add new colors for linea goerli network

* feat: add new function inside network dropdown to render non infura networks

* feat: add feature toggle for linea network

* fix: add new unit test

---------

Co-authored-by: Dan J Miller <danjm.com@gmail.com>

app/_locales/am/messages.json

@@ -157,6 +157,9 @@
   "connectingToGoerli": {
     "message": "ከ Goerli የሙከራ አውታረ መረብ ጋር መገናኘት"
   },
+  "connectingToLineaTestnet": {
+    "message": "ከ Linea Goerli የሙከራ አውታረ መረብ ጋር መገናኘት"
+  },
   "connectingToMainnet": {
     "message": "ከዋናው የ Ethereum አውታረ መረብ ጋር መገናኘት"
   },
@@ -400,6 +403,9 @@
   "likeToImportTokens": {
     "message": "እነዚህን ተለዋጭ ስሞች ለማከል ይፈልጋሉ?"
   },
+  "lineatestnet": {
+    "message": "የ Linea Goerli የሙከራ አውታረ መረብ"
+  },
   "links": {
     "message": "ማስፈንጠሪያዎች"
   },

app/_locales/ar/messages.json

@@ -167,6 +167,9 @@
   "connectingToGoerli": {
     "message": "الاتصال بشبكة اختبار Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "الاتصال بشبكة اختبار Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "جارِ الاتصال بشبكة إيثيريوم الرئيسية"
   },
@@ -412,6 +415,9 @@
   "likeToImportTokens": {
     "message": "هل ترغب في إضافة هذه الرموز؟"
   },
+  "lineatestnet": {
+    "message": "شبكة اختبار Linea Goerli"
+  },
   "links": {
     "message": "الروابط"
   },

app/_locales/bg/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Свързване с тестова мрежа на Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Свързване с тестова мрежа на Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Свързване с главната мрежа Ethereum"
   },
@@ -408,6 +411,9 @@
   "likeToImportTokens": {
     "message": "Искате ли да добавите тези жетони?"
   },
+  "lineatestnet": {
+    "message": "Тестова мрежа на Linea Goerli"
+  },
   "links": {
     "message": "Връзки"
   },

app/_locales/ca/messages.json

@@ -160,6 +160,9 @@
   "connectingToGoerli": {
     "message": "Connectant a Xarxa de Prova Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Connectant a Xarxa de Prova Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Connectant a Xarxa Principal Ethereum"
   },
@@ -399,6 +402,9 @@
   "likeToImportTokens": {
     "message": "T'agradaria afegir aquestes fitxes?"
   },
+  "lineatestnet": {
+    "message": "Xarxa de test Linea Goerli"
+  },
   "links": {
     "message": "Enllaços"
   },

app/_locales/da/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Opretter forbindelse til Goerli Testnetværk"
   },
+  "connectingToLineaTestnet": {
+    "message": "Opretter forbindelse til Linea Goerli Testnetværk"
+  },
   "connectingToMainnet": {
     "message": "Forbinder til dit Primære Ethereum Netværk"
   },
@@ -405,6 +408,9 @@
   "likeToImportTokens": {
     "message": "Ønsker du at tilføje disse tokens?"
   },
+  "lineatestnet": {
+    "message": "Linea-testnetværk"
+  },
   "loadMore": {
     "message": "Indlæs Mere"
   },

app/_locales/de/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Verbindungsaufbau zum Goerli-Testnetzwerk"
   },
+  "connectingToLineaTestnet": {
+    "message": "Verbindungsaufbau zum Linea-Testnetzwerk"
+  },
   "connectingToMainnet": {
     "message": "Verbinde zum Ethereum Mainnet"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "Möchtest du diese Token hinzufügen?"
   },
+  "lineatestnet": {
+    "message": "Linea-Testnetzwerk"
+  },
   "link": {
     "message": "Link"
   },

app/_locales/el/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Σύνδεση στο Δίκτυο Δοκιμής Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Σύνδεση στο δίκτυο δοκιμών Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Σύνδεση στο Κύριο Δίκτυο Ethereum"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "Θέλετε να προσθέσετε αυτά τα token;"
   },
+  "lineatestnet": {
+    "message": "Δίκτυο δοκιμών Linea Goerli"
+  },
   "link": {
     "message": "Σύνδεσμος"
   },

app/_locales/en/messages.json

@@ -732,6 +732,9 @@
   "connectingToGoerli": {
     "message": "Connecting to Goerli test network"
   },
+  "connectingToLineaTestnet": {
+    "message": "Connecting to Linea Goerli test network"
+  },
   "connectingToMainnet": {
     "message": "Connecting to Ethereum Mainnet"
   },
@@ -1940,6 +1943,9 @@
   "likeToImportTokens": {
     "message": "Would you like to import these tokens?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli test network"
+  },
   "link": {
     "message": "Link"
   },

app/_locales/es/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Estableciendo conexión a la red de prueba Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Conectando a la red de prueba Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Estableciendo conexión a la red principal de Ethereum"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "¿Le gustaría agregar estos tokens?"
   },
+  "lineatestnet": {
+    "message": "Red de prueba Linea Goerli"
+  },
   "link": {
     "message": "Vínculo"
   },

app/_locales/es_419/messages.json

@@ -451,6 +451,9 @@
   "connectingToGoerli": {
     "message": "Estableciendo conexión a la red de prueba Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Estableciendo conexión a la red de prueba Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Estableciendo conexión a la red principal de Ethereum"
   },
@@ -1269,6 +1272,9 @@
   "likeToImportTokens": {
     "message": "¿Quiere agregar estos tokens?"
   },
+  "lineatestnet": {
+    "message": "Red de prueba Linea Goerli"
+  },
   "link": {
     "message": "Enlace"
   },

app/_locales/et/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Ühendamine Goerli testvõrguga"
   },
+  "connectingToLineaTestnet": {
+    "message": "Ühendamine Linea Goerli testvõrguga"
+  },
   "connectingToMainnet": {
     "message": "Ühenduse loomine peamise Etherumi võrguga"
   },
@@ -408,6 +411,9 @@
   "likeToImportTokens": {
     "message": "Kas soovite need load lisada?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli testvõrk"
+  },
   "links": {
     "message": "Lingid"
   },

app/_locales/fa/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "در حال اتصال به شبکه آزمایشی Goerli "
   },
+  "connectingToLineaTestnet": {
+    "message": "در حال اتصال به شبکه آزمایشی Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "در حال اتصال به شبکه اصلی ایتریم"
   },
@@ -412,6 +415,9 @@
   "likeToImportTokens": {
     "message": "آیا میخواهید این رمزیاب ها را اضافه نمایید؟"
   },
+  "lineatestnet": {
+    "message": "شبکه آزمایشی Linea Goerli"
+  },
   "links": {
     "message": "لینک ها"
   },

app/_locales/fi/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Yhdistetään Goerlin testiverkostoon"
   },
+  "connectingToLineaTestnet": {
+    "message": "Yhdistetään Linea Goerli testiverkostoon"
+  },
   "connectingToMainnet": {
     "message": "Yhdistetään Ethereumin pääverkkoon"
   },
@@ -412,6 +415,9 @@
   "likeToImportTokens": {
     "message": "Haluaisitko lisätä nämä poletit?"
   },
+  "lineatestnet": {
+    "message": "Linea-testiverkko"
+  },
   "links": {
     "message": "Linkit"
   },

app/_locales/fil/messages.json

@@ -142,6 +142,9 @@
   "connectingToGoerli": {
     "message": "Kumokonekta sa Goerli Test Network"
   },
+  "connectingToLineaTestnet": {
+    "message": "Kumokonekta sa Linea Goerli Test Network"
+  },
   "connectingToMainnet": {
     "message": "Kumokonekta sa Ethereum Mainnet"
   },

app/_locales/fr/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Connexion au testnet Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Connexion au réseau de test Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Connexion au réseau principal Ethereum"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "Souhaitez-vous ajouter ces jetons ?"
   },
+  "lineatestnet": {
+    "message": "Réseau de test Linea Goerli"
+  },
   "link": {
     "message": "Associer"
   },

app/_locales/he/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "מתחבר ל-Goerli Test Network"
   },
+  "connectingToLineaTestnet": {
+    "message": "מתחבר ל-Linea Goerli Test Network"
+  },
   "connectingToMainnet": {
     "message": "מתחבר לרשת אתריום הראשית"
   },
@@ -412,6 +415,9 @@
   "likeToImportTokens": {
     "message": "האם ברצונך להוסיף טוקנים אלה?"
   },
+  "lineatestnet": {
+    "message": "רשת בדיקה Linea Goerli"
+  },
   "links": {
     "message": "קישורים"
   },

app/_locales/hi/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Goerli टेस्ट नेटवर्क से कनेक्ट हो रहा है"
   },
+  "connectingToLineaTestnet": {
+    "message": "Linea Goerli टेस्ट नेटवर्क से कनेक्ट हो रहा है"
+  },
   "connectingToMainnet": {
     "message": "Ethereum Mainnet से कनेक्ट हो रहा है"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "क्या आप इन टोकन को इंपोर्ट करना चाहते हैं?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli टेस्ट नेटवर्क"
+  },
   "link": {
     "message": "लिंक"
   },

app/_locales/hr/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Povezivanje na testnu mrežu Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Povezivanje na testnu mrežu Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Povezivanje na glavnu mrežu Ethereum"
   },
@@ -408,6 +411,9 @@
   "likeToImportTokens": {
     "message": "Želite li dodati ove tokene?"
   },
+  "lineatestnet": {
+    "message": "Testna mreža Linea Goerli"
+  },
   "links": {
     "message": "Poveznice"
   },

app/_locales/hu/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Csatlakozás a Goerli teszthálózathoz"
   },
+  "connectingToLineaTestnet": {
+    "message": "Csatlakozás a Linea Goerli teszthálózathoz"
+  },
   "connectingToMainnet": {
     "message": "Csatlakozás a fő Ethereum hálózathoz"
   },
@@ -408,6 +411,9 @@
   "likeToImportTokens": {
     "message": "Hozzá szeretné adni ezeket az érméket?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli teszthálózat"
+  },
   "links": {
     "message": "Linkek"
   },

app/_locales/id/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Menghubungkan ke jaringan uji Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Menghubungkan ke jaringan uji Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Menghubungkan ke Ethereum Mainnet"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "Apakah Anda ingin menambahkan token ini?"
   },
+  "lineatestnet": {
+    "message": "Jaringan uji Linea Goerli"
+  },
   "link": {
     "message": "Tautan"
   },

app/_locales/it/messages.json

@@ -551,6 +551,9 @@
   "connectingToGoerli": {
     "message": "Connessione alla Rete di Test Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Connessione alla Rete di test Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Connessione alla Rete Ethereum Principale"
   },
@@ -1125,6 +1128,9 @@
   "likeToImportTokens": {
     "message": "Vorresti aggiungere questi token?"
   },
+  "lineatestnet": {
+    "message": "Rete di test Linea Goerli"
+  },
   "links": {
     "message": "Collegamenti"
   },

app/_locales/ja/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Goerliテストネットワークに接続中"
   },
+  "connectingToLineaTestnet": {
+    "message": "Linea Goerli テストネットワークに接続中"
+  },
   "connectingToMainnet": {
     "message": "イーサリアムメインネットに接続中"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "これらのトークンを追加しますか?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli テストネットワーク"
+  },
   "link": {
     "message": "リンク"
   },

app/_locales/kn/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Goerli ಪರೀಕ್ಷಾ ನೆಟ್‌ವರ್ಕ್‌ಗೆ ಸಂಪರ್ಕಿಸಲಾಗುತ್ತಿದೆ"
   },
+  "connectingToLineaTestnet": {
+    "message": "Linea Goerli ಪರೀಕ್ಷಾ ನೆಟ್‌ವರ್ಕ್‌ಗೆ ಸಂಪರ್ಕಿಸಲಾಗುತ್ತಿದೆ"
+  },
   "connectingToMainnet": {
     "message": "ಮುಖ್ಯ ಎಥೆರಿಯಮ್ ನೆಟ್‌ವರ್ಕ್‌ಗೆ ಸಂಪರ್ಕಿಸಲಾಗುತ್ತಿದೆ"
   },
@@ -412,6 +415,9 @@
   "likeToImportTokens": {
     "message": "ನೀವು ಈ ಟೋಕನ್‌ಗಳನ್ನು ಸೇರಿಸಲು ಬಯಸುತ್ತೀರಾ?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli ಪರೀಕ್ಷೆ ನೆಟ್‌ವರ್ಕ್"
+  },
   "links": {
     "message": "ಲಿಂಕ್‌ಗಳು"
   },

app/_locales/ko/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Goerli 테스트 네트워크에 연결 중"
   },
+  "connectingToLineaTestnet": {
+    "message": "Linea Goerli 테스트 네트워크에 연결 중"
+  },
   "connectingToMainnet": {
     "message": "이더리움 메인넷에 연결 중"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "이 토큰을 추가할까요?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli 테스트 네트워크"
+  },
   "link": {
     "message": "링크"
   },

app/_locales/lt/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Jungiamasi prie „Goerli“ bandomojo tinklo"
   },
+  "connectingToLineaTestnet": {
+    "message": "Jungiamasi prie „Linea“ bandomojo tinklo"
+  },
   "connectingToMainnet": {
     "message": "Jungiamasi prie pagrindinio „Ethereum“ tinklo"
   },
@@ -412,6 +415,9 @@
   "likeToImportTokens": {
     "message": "Ar norėtumėte pridėti šiuos žetonus?"
   },
+  "lineatestnet": {
+    "message": "„Linea“ bandomasis tinklas"
+  },
   "links": {
     "message": "Nuorodos"
   },

app/_locales/lv/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Pieslēdzas Goerli testa tīklam"
   },
+  "connectingToLineaTestnet": {
+    "message": "Pieslēdzas Linea Goerli testa tīklam"
+  },
   "connectingToMainnet": {
     "message": "Savienojas ar galveno Ethereum tīklu"
   },
@@ -408,6 +411,9 @@
   "likeToImportTokens": {
     "message": "Vai vēlaties pievienot šos marķierus?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli testa tīkls"
+  },
   "links": {
     "message": "Saites"
   },

app/_locales/ms/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Menyambung kepada Rangkaian Ujian Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Menyambung kepada Rangkaian Ujian Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Menyambung kepada Rangkaian Ethereum Utama"
   },
@@ -401,6 +404,9 @@
   "likeToImportTokens": {
     "message": "Adakah anda ingin menambah token ini?"
   },
+  "lineatestnet": {
+    "message": "Rangkaian Ujian Linea Goerli"
+  },
   "links": {
     "message": "Pautan"
   },

app/_locales/no/messages.json

@@ -160,6 +160,9 @@
   "connectingToGoerli": {
     "message": "Oppretter forbindelse med Goerli Test Network"
   },
+  "connectingToLineaTestnet": {
+    "message": "Oppretter forbindelse med Linea Goerli Test Network"
+  },
   "connectingToMainnet": {
     "message": "Forbinder med hoved-Ethereumnettverk "
   },

app/_locales/ph/messages.json

@@ -314,6 +314,9 @@
   "connectingToGoerli": {
     "message": "Kumokonekta sa Goerli Test Network"
   },
+  "connectingToLineaTestnet": {
+    "message": "Kumokonekta sa Linea Goerli Test Network"
+  },
   "connectingToMainnet": {
     "message": "Kumokonekta sa Ethereum Mainnet"
   },
@@ -804,6 +807,9 @@
   "likeToImportTokens": {
     "message": "Gusto mo bang idagdag ang mga token na ito?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli Test Network"
+  },
   "links": {
     "message": "Mga Link"
   },

app/_locales/pl/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Łączenie z siecią testową Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Łączenie z siecią testową Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Łączenie z główną siecią Ethereum"
   },
@@ -412,6 +415,9 @@
   "likeToImportTokens": {
     "message": "Czy chcesz dodać te tokeny?"
   },
+  "lineatestnet": {
+    "message": "Sieć testowa Linea Goerli"
+  },
   "links": {
     "message": "Łącza"
   },

app/_locales/pt/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Conectando à rede de testes Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Conectando à rede de teste Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Conectando à mainnet do Ethereum"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "Gostaria de adicionar estes tokens?"
   },
+  "lineatestnet": {
+    "message": "Rede de teste Linea Goerli"
+  },
   "link": {
     "message": "Link"
   },

app/_locales/pt_BR/messages.json

@@ -451,6 +451,9 @@
   "connectingToGoerli": {
     "message": "Conectando à rede de testes Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Conectando à rede de testes Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Conectando à mainnet do Ethereum"
   },
@@ -1269,6 +1272,9 @@
   "likeToImportTokens": {
     "message": "Você gostaria de importar esses tokens?"
   },
+  "lineatestnet": {
+    "message": "Rede de testes Linea Goerli"
+  },
   "link": {
     "message": "Link"
   },

app/_locales/ro/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Se conectează la rețeaua de test Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Se conectează la rețeaua de test Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Se conectează la rețeaua Ethereum principală"
   },
@@ -402,6 +405,9 @@
   "likeToImportTokens": {
     "message": "Adăugați aceste indicative?"
   },
+  "lineatestnet": {
+    "message": "Rețea de test Linea Goerli"
+  },
   "links": {
     "message": "Link-uri"
   },

app/_locales/ru/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Подключение к тестовой сети Goerli..."
   },
+  "connectingToLineaTestnet": {
+    "message": "Подключение к тестовой сети Linea..."
+  },
   "connectingToMainnet": {
     "message": "Подключение к сети Ethereum Mainnet..."
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "Вы хотели бы импортировать эти токены?"
   },
+  "lineatestnet": {
+    "message": "Тестовая сеть Linea Goerli"
+  },
   "link": {
     "message": "Привязать"
   },

app/_locales/sk/messages.json

@@ -157,6 +157,9 @@
   "connectingToGoerli": {
     "message": "Pripája sa k testovacej sieti Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Pripája sa k testovacej sieti Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Připojuji se k Ethereum Mainnet"
   },
@@ -399,6 +402,9 @@
   "likeToImportTokens": {
     "message": "Chcete přidat tyto tokeny?"
   },
+  "lineatestnet": {
+    "message": "Testovacia sieť Linea Goerli"
+  },
   "links": {
     "message": "Odkazy"
   },

app/_locales/sl/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Povezovanje na testno omrežje Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Povezovanje na testno omrežje Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Povezovanje na glavno omrežje"
   },
@@ -406,6 +409,9 @@
   "likeToImportTokens": {
     "message": "Želite dodati te žetone?"
   },
+  "lineatestnet": {
+    "message": "Testno omrežje Linea Goerli"
+  },
   "links": {
     "message": "Povezave"
   },

app/_locales/sr/messages.json

@@ -160,6 +160,9 @@
   "connectingToGoerli": {
     "message": "Povezuje se sa test mrežom Goerli "
   },
+  "connectingToLineaTestnet": {
+    "message": "Povezuje se sa test mrežom Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Povezuje se na glavnu Ethereum mrežu"
   },
@@ -409,6 +412,9 @@
   "likeToImportTokens": {
     "message": "Želite li da dodate ove tokene?"
   },
+  "lineatestnet": {
+    "message": "Test mreža Linea Goerli"
+  },
   "links": {
     "message": "Veze"
   },

app/_locales/sv/messages.json

@@ -157,6 +157,9 @@
   "connectingToGoerli": {
     "message": "Ansluter till Goerli Test Network"
   },
+  "connectingToLineaTestnet": {
+    "message": "Ansluter till Linea Goerli Test Network"
+  },
   "connectingToMainnet": {
     "message": "Koppla till Ethereums huvudnätverk"
   },
@@ -402,6 +405,9 @@
   "likeToImportTokens": {
     "message": "Vill du lägga till dessa tokens?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli testnätverk"
+  },
   "links": {
     "message": "Länkar"
   },

app/_locales/sw/messages.json

@@ -157,6 +157,9 @@
   "connectingToGoerli": {
     "message": "Inaunganisha kwenye Mtandao wa Majaribio wa Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Inaunganisha kwenye Mtandao wa Majaribio wa Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Inaunganisha kwenye Mtandao Mkuu wa Ethereum"
   },
@@ -399,6 +402,9 @@
   "likeToImportTokens": {
     "message": "Je, ungependa kuongeza vianzio hivi?"
   },
+  "lineatestnet": {
+    "message": "Mtandao wa Majaribio wa Linea Goerli"
+  },
   "links": {
     "message": "Viungo"
   },

app/_locales/tl/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Kumokonekta sa Goerli Test Network"
   },
+  "connectingToLineaTestnet": {
+    "message": "Kumokonekta sa Linea Goerli test network"
+  },
   "connectingToMainnet": {
     "message": "Kumokonekta sa Ethereum Mainnet"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "Gusto mo bang idagdag ang mga token na ito?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli test network"
+  },
   "link": {
     "message": "Link"
   },

app/_locales/tr/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Goerli Test Ağına Bağlanıyor"
   },
+  "connectingToLineaTestnet": {
+    "message": "Linea Goerli test ağına bağlanılıyor"
+  },
   "connectingToMainnet": {
     "message": "Ethereum Mainnet ağına bağlanıyor"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "Bu tokenleri içe aktarmak ister misiniz?"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli test ağı"
+  },
   "link": {
     "message": "Bağlantı"
   },

app/_locales/uk/messages.json

@@ -163,6 +163,9 @@
   "connectingToGoerli": {
     "message": "Підключення до тестової мережі Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Підключення до тестової мережі Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "З'єднуємось з Головною мережею Ethereum"
   },
@@ -412,6 +415,9 @@
   "likeToImportTokens": {
     "message": "Ви б хотіли додати ці токени?"
   },
+  "lineatestnet": {
+    "message": "Тестова мережа Linea Goerli"
+  },
   "links": {
     "message": "Посилання"
   },

app/_locales/vi/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "Đang kết nối với mạng thử nghiệm Goerli"
   },
+  "connectingToLineaTestnet": {
+    "message": "Đang kết nối với mạng thử nghiệm Linea Goerli"
+  },
   "connectingToMainnet": {
     "message": "Đang kết nối với mạng chính thức của Ethereum"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "Bạn có muốn nhập những token này không?"
   },
+  "lineatestnet": {
+    "message": "Mạng thử nghiệm Linea Goerli"
+  },
   "link": {
     "message": "Liên kết"
   },

app/_locales/zh_CN/messages.json

@@ -711,6 +711,9 @@
   "connectingToGoerli": {
     "message": "正在连接 Goerli 测试网络"
   },
+  "connectingToLineaTestnet": {
+    "message": "正在连接Linea测试网络"
+  },
   "connectingToMainnet": {
     "message": "正在连接到以太坊主网"
   },
@@ -1892,6 +1895,9 @@
   "likeToImportTokens": {
     "message": "您想导入这些代币吗？"
   },
+  "lineatestnet": {
+    "message": "Linea测试网络"
+  },
   "link": {
     "message": "链接"
   },

app/_locales/zh_TW/messages.json

@@ -313,6 +313,9 @@
   "connectingToGoerli": {
     "message": "連線到 Goerli 測試網路"
   },
+  "connectingToLineaTestnet": {
+    "message": "連線到 Linea Goerli 測試網路"
+  },
   "connectingToMainnet": {
     "message": "連線到 Ethereum 主網路"
   },
@@ -812,6 +815,9 @@
   "likeToImportTokens": {
     "message": "確定要加入代幣？"
   },
+  "lineatestnet": {
+    "message": "Linea Goerli 測試網路"
+  },
   "links": {
     "message": "連結"
   },

app/scripts/lib/rpc-method-middleware/handlers/switch-ethereum-chain.js

@@ -110,7 +110,8 @@ async function switchEthereumChainHandler(
       });
       if (
         chainId in CHAIN_ID_TO_TYPE_MAP &&
-        approvedRequestData.type !== NETWORK_TYPES.LOCALHOST
+        approvedRequestData.type !== NETWORK_TYPES.LOCALHOST &&
+        approvedRequestData.type !== NETWORK_TYPES.LINEA_TESTNET
       ) {
         setProviderType(approvedRequestData.type);
       } else {

development/states/navigate-txs.json

@@ -304,7 +304,8 @@
     "infuraNetworkStatus": {
       "mainnet": "ok",
       "goerli": "ok",
-      "sepolia": "ok"
+      "sepolia": "ok",
+      "lineatestnet": "ok"
     }
   },
   "send": {

shared/constants/network.ts

@@ -95,6 +95,7 @@ export const NETWORK_TYPES = {
   MAINNET: 'mainnet',
   RPC: 'rpc',
   SEPOLIA: 'sepolia',
+  LINEA_TESTNET: 'lineatestnet',
 } as const;
 
 /**
@@ -120,6 +121,7 @@ export const NETWORK_IDS = {
   GOERLI: '5',
   LOCALHOST: '1337',
   SEPOLIA: '11155111',
+  LINEA_TESTNET: '59140',
 } as const;
 
 /**
@@ -145,6 +147,7 @@ export const CHAIN_IDS = {
   HARMONY: '0x63564c40',
   PALM: '0x2a15c308d',
   SEPOLIA: '0xaa36a7',
+  LINEA_TESTNET: '0xe704',
   AURORA: '0x4e454152',
   MOONBEAM: '0x504',
   MOONBEAM_TESTNET: '0x507',
@@ -160,6 +163,7 @@ export const MAX_SAFE_CHAIN_ID = 4503599627370476;
 export const MAINNET_DISPLAY_NAME = 'Ethereum Mainnet';
 export const GOERLI_DISPLAY_NAME = 'Goerli';
 export const SEPOLIA_DISPLAY_NAME = 'Sepolia';
+export const LINEA_TESTNET_DISPLAY_NAME = 'Linea Goerli test network';
 export const LOCALHOST_DISPLAY_NAME = 'Localhost 8545';
 export const BSC_DISPLAY_NAME = 'Binance Smart Chain';
 export const POLYGON_DISPLAY_NAME = 'Polygon';
@@ -189,6 +193,7 @@ export const MAINNET_RPC_URL = getRpcUrl({
 });
 export const GOERLI_RPC_URL = getRpcUrl({ network: NETWORK_TYPES.GOERLI });
 export const SEPOLIA_RPC_URL = getRpcUrl({ network: NETWORK_TYPES.SEPOLIA });
+export const LINEA_TESTNET_RPC_URL = 'https://rpc.goerli.linea.build';
 export const LOCALHOST_RPC_URL = 'http://localhost:8545';
 
 /**
@@ -238,6 +243,7 @@ export const INFURA_PROVIDER_TYPES = [
 export const TEST_CHAINS = [
   CHAIN_IDS.GOERLI,
   CHAIN_IDS.SEPOLIA,
+  CHAIN_IDS.LINEA_TESTNET,
   CHAIN_IDS.LOCALHOST,
 ];
 
@@ -256,6 +262,10 @@ export const TEST_NETWORK_TICKER_MAP: {
   [NETWORK_TYPES.SEPOLIA]: `${typedCapitalize(NETWORK_TYPES.SEPOLIA)}${
     CURRENCY_SYMBOLS.ETH
   }`,
+  [NETWORK_TYPES.LINEA_TESTNET]:
+    `Linea${CURRENCY_SYMBOLS.ETH}` as `${Capitalize<
+      typeof NETWORK_TYPES.LINEA_TESTNET
+    >}${typeof CURRENCY_SYMBOLS.ETH}`,
 };
 
 /**
@@ -274,6 +284,12 @@ export const BUILT_IN_NETWORKS = {
     ticker: TEST_NETWORK_TICKER_MAP[NETWORK_TYPES.SEPOLIA],
     blockExplorerUrl: `https://${NETWORK_TYPES.SEPOLIA}.etherscan.io`,
   },
+  [NETWORK_TYPES.LINEA_TESTNET]: {
+    networkId: NETWORK_IDS.LINEA_TESTNET,
+    chainId: CHAIN_IDS.LINEA_TESTNET,
+    ticker: TEST_NETWORK_TICKER_MAP[NETWORK_TYPES.LINEA_TESTNET],
+    blockExplorerUrl: 'https://explorer.goerli.linea.build',
+  },
   [NETWORK_TYPES.MAINNET]: {
     networkId: NETWORK_IDS.MAINNET,
     chainId: CHAIN_IDS.MAINNET,
@@ -289,15 +305,18 @@ export const NETWORK_TO_NAME_MAP = {
   [NETWORK_TYPES.MAINNET]: MAINNET_DISPLAY_NAME,
   [NETWORK_TYPES.GOERLI]: GOERLI_DISPLAY_NAME,
   [NETWORK_TYPES.SEPOLIA]: SEPOLIA_DISPLAY_NAME,
+  [NETWORK_TYPES.LINEA_TESTNET]: LINEA_TESTNET_DISPLAY_NAME,
   [NETWORK_TYPES.LOCALHOST]: LOCALHOST_DISPLAY_NAME,
 
   [NETWORK_IDS.GOERLI]: GOERLI_DISPLAY_NAME,
   [NETWORK_IDS.SEPOLIA]: SEPOLIA_DISPLAY_NAME,
+  [NETWORK_IDS.LINEA_TESTNET]: LINEA_TESTNET_DISPLAY_NAME,
   [NETWORK_IDS.MAINNET]: MAINNET_DISPLAY_NAME,
   [NETWORK_IDS.LOCALHOST]: LOCALHOST_DISPLAY_NAME,
 
   [CHAIN_IDS.GOERLI]: GOERLI_DISPLAY_NAME,
   [CHAIN_IDS.SEPOLIA]: SEPOLIA_DISPLAY_NAME,
+  [CHAIN_IDS.LINEA_TESTNET]: LINEA_TESTNET_DISPLAY_NAME,
   [CHAIN_IDS.MAINNET]: MAINNET_DISPLAY_NAME,
   [CHAIN_IDS.LOCALHOST]: LOCALHOST_DISPLAY_NAME,
 } as const;
@@ -306,12 +325,14 @@ export const CHAIN_ID_TO_TYPE_MAP = {
   [CHAIN_IDS.MAINNET]: NETWORK_TYPES.MAINNET,
   [CHAIN_IDS.GOERLI]: NETWORK_TYPES.GOERLI,
   [CHAIN_IDS.SEPOLIA]: NETWORK_TYPES.SEPOLIA,
+  [CHAIN_IDS.LINEA_TESTNET]: NETWORK_TYPES.LINEA_TESTNET,
   [CHAIN_IDS.LOCALHOST]: NETWORK_TYPES.LOCALHOST,
 } as const;
 
 export const CHAIN_ID_TO_RPC_URL_MAP = {
   [CHAIN_IDS.GOERLI]: GOERLI_RPC_URL,
   [CHAIN_IDS.SEPOLIA]: SEPOLIA_RPC_URL,
+  [CHAIN_IDS.LINEA_TESTNET]: LINEA_TESTNET_RPC_URL,
   [CHAIN_IDS.MAINNET]: MAINNET_RPC_URL,
   [CHAIN_IDS.LOCALHOST]: LOCALHOST_RPC_URL,
 } as const;
@@ -333,6 +354,7 @@ export const CHAIN_ID_TO_NETWORK_IMAGE_URL_MAP = {
 export const NETWORK_ID_TO_ETHERS_NETWORK_NAME_MAP = {
   [NETWORK_IDS.GOERLI]: NETWORK_TYPES.GOERLI,
   [NETWORK_IDS.SEPOLIA]: NETWORK_TYPES.SEPOLIA,
+  [NETWORK_IDS.LINEA_TESTNET]: NETWORK_TYPES.LINEA_TESTNET,
   [NETWORK_IDS.MAINNET]: NETWORK_NAMES.HOMESTEAD,
 } as const;
 
@@ -340,6 +362,7 @@ export const CHAIN_ID_TO_NETWORK_ID_MAP = {
   [CHAIN_IDS.MAINNET]: NETWORK_IDS.MAINNET,
   [CHAIN_IDS.GOERLI]: NETWORK_IDS.GOERLI,
   [CHAIN_IDS.SEPOLIA]: NETWORK_IDS.SEPOLIA,
+  [CHAIN_IDS.LINEA_TESTNET]: NETWORK_IDS.LINEA_TESTNET,
   [CHAIN_IDS.LOCALHOST]: NETWORK_IDS.LOCALHOST,
 } as const;
 
@@ -380,6 +403,11 @@ export const ETHERSCAN_SUPPORTED_NETWORKS = {
     }`,
     networkId: CHAIN_ID_TO_NETWORK_ID_MAP[CHAIN_IDS.SEPOLIA],
   },
+  [CHAIN_IDS.LINEA_TESTNET]: {
+    domain: 'linea.build',
+    subdomain: 'explorer.goerli',
+    networkId: CHAIN_ID_TO_NETWORK_ID_MAP[CHAIN_IDS.LINEA_TESTNET],
+  },
   [CHAIN_IDS.BSC]: {
     domain: 'bscscan.com',
     subdomain: defaultEtherscanSubdomainPrefix,
@@ -504,6 +532,7 @@ export const BUYABLE_CHAINS_MAP: {
     | typeof CHAIN_IDS.MOONBEAM_TESTNET
     | typeof CHAIN_IDS.MOONRIVER
     | typeof CHAIN_IDS.AURORA
+    | typeof CHAIN_IDS.LINEA_TESTNET
   >]: BuyableChainSettings;
 } = {
   [CHAIN_IDS.MAINNET]: {
@@ -650,3 +679,6 @@ export const FEATURED_RPCS: RPCDefinition[] = [
     },
   },
 ];
+
+export const SHOULD_SHOW_LINEA_TESTNET_NETWORK =
+  new Date().getTime() > Date.UTC(2023, 2, 28);

ui/components/app/dropdowns/network-dropdown.js

@@ -8,8 +8,13 @@ import Button from '../../ui/button';
 import * as actions from '../../../store/actions';
 import { openAlert as displayInvalidCustomNetworkAlert } from '../../../ducks/alerts/invalid-custom-network';
 import {
+  BUILT_IN_NETWORKS,
+  CHAIN_ID_TO_RPC_URL_MAP,
+  LINEA_TESTNET_RPC_URL,
   LOCALHOST_RPC_URL,
+  NETWORK_TO_NAME_MAP,
   NETWORK_TYPES,
+  SHOULD_SHOW_LINEA_TESTNET_NETWORK,
 } from '../../../../shared/constants/network';
 import { isPrefixedFormattedHexString } from '../../../../shared/modules/network.utils';
 
@@ -65,6 +70,8 @@ function mapDispatchToProps(dispatch) {
     setActiveNetwork: (networkConfigurationId) => {
       dispatch(actions.setActiveNetwork(networkConfigurationId));
     },
+    upsertNetworkConfiguration: (...args) =>
+      dispatch(actions.upsertNetworkConfiguration(...args)),
     hideNetworkDropdown: () => dispatch(actions.hideNetworkDropdown()),
     displayInvalidCustomNetworkAlert: (networkName) => {
       dispatch(displayInvalidCustomNetworkAlert(networkName));
@@ -109,6 +116,7 @@ class NetworkDropdown extends Component {
     dropdownStyles: PropTypes.object,
     hideElementsForOnboarding: PropTypes.bool,
     onAddClick: PropTypes.func,
+    upsertNetworkConfiguration: PropTypes.func.isRequired,
   };
 
   handleClick(newProviderType) {
@@ -231,6 +239,8 @@ class NetworkDropdown extends Component {
         return t('goerli');
       case NETWORK_TYPES.SEPOLIA:
         return t('sepolia');
+      case NETWORK_TYPES.LINEA_TESTNET:
+        return t('lineatestnet');
       case NETWORK_TYPES.LOCALHOST:
         return t('localhost');
       default:
@@ -275,6 +285,78 @@ class NetworkDropdown extends Component {
     );
   }
 
+  renderNonInfuraDefaultNetwork(networkConfigurations, network) {
+    const {
+      provider: { type: providerType },
+      setActiveNetwork,
+      upsertNetworkConfiguration,
+    } = this.props;
+
+    const isCurrentRpcTarget = providerType === NETWORK_TYPES.RPC;
+    return (
+      <DropdownMenuItem
+        key={network}
+        closeMenu={this.props.hideNetworkDropdown}
+        onClick={async () => {
+          const { chainId, ticker, blockExplorerUrl } =
+            BUILT_IN_NETWORKS[network];
+          const networkName = NETWORK_TO_NAME_MAP[network];
+
+          const networkConfiguration = pickBy(
+            networkConfigurations,
+            (config) => config.rpcUrl === CHAIN_ID_TO_RPC_URL_MAP[chainId],
+          );
+
+          let configurationId = null;
+          // eslint-disable-next-line no-extra-boolean-cast, no-implicit-coercion
+          if (!!networkConfiguration) {
+            const rpcUrl = CHAIN_ID_TO_RPC_URL_MAP[chainId];
+            configurationId = await upsertNetworkConfiguration(
+              {
+                rpcUrl,
+                ticker,
+                chainId,
+                nickname: networkName,
+                rpcPrefs: {
+                  blockExplorerUrl,
+                },
+              },
+              {
+                setActive: true,
+                source: EVENT.SOURCE.NETWORK.CUSTOM_NETWORK_FORM,
+              },
+            );
+          }
+          setActiveNetwork(configurationId);
+        }}
+        style={DROP_DOWN_MENU_ITEM_STYLE}
+      >
+        {isCurrentRpcTarget ? (
+          <Icon name={ICON_NAMES.CHECK} color={IconColor.successDefault} />
+        ) : (
+          <div className="network-check__transparent">✓</div>
+        )}
+        <ColorIndicator
+          color={network}
+          size={Size.LG}
+          type={ColorIndicator.TYPES.FILLED}
+        />
+        <span
+          className="network-name-item"
+          data-testid={`${network}-network-item`}
+          style={{
+            color:
+              providerType === network
+                ? 'var(--color-text-default)'
+                : 'var(--color-text-alternative)',
+          }}
+        >
+          {this.context.t(network)}
+        </span>
+      </DropdownMenuItem>
+    );
+  }
+
   render() {
     const {
       history,
@@ -286,9 +368,11 @@ class NetworkDropdown extends Component {
       networkConfigurations,
     } = this.props;
 
-    const rpcListDetailWithoutLocalHost = pickBy(
+    const rpcListDetailWithoutLocalHostAndLinea = pickBy(
       networkConfigurations,
-      (config) => config.rpcUrl !== LOCALHOST_RPC_URL,
+      (config) =>
+        config.rpcUrl !== LOCALHOST_RPC_URL &&
+        config.rpcUrl !== LINEA_TESTNET_RPC_URL,
     );
     const rpcListDetailForLocalHost = pickBy(
       networkConfigurations,
@@ -363,7 +447,7 @@ class NetworkDropdown extends Component {
           {this.renderNetworkEntry(NETWORK_TYPES.MAINNET)}
 
           {this.renderCustomRpcList(
-            rpcListDetailWithoutLocalHost,
+            rpcListDetailWithoutLocalHostAndLinea,
             this.props.provider,
           )}
 
@@ -371,6 +455,14 @@ class NetworkDropdown extends Component {
             <>
               {this.renderNetworkEntry(NETWORK_TYPES.GOERLI)}
               {this.renderNetworkEntry(NETWORK_TYPES.SEPOLIA)}
+              {SHOULD_SHOW_LINEA_TESTNET_NETWORK && (
+                <>
+                  {this.renderNonInfuraDefaultNetwork(
+                    networkConfigurations,
+                    NETWORK_TYPES.LINEA_TESTNET,
+                  )}
+                </>
+              )}
               {this.renderCustomRpcList(
                 rpcListDetailForLocalHost,
                 this.props.provider,

ui/components/app/dropdowns/network-dropdown.test.js

@@ -6,6 +6,15 @@ import { renderWithProvider } from '../../../../test/lib/render-helpers';
 import { LOCALHOST_RPC_URL } from '../../../../shared/constants/network';
 import NetworkDropdown from './network-dropdown';
 
+// Mock linea test network feature toggle
+jest.mock('../../../../shared/constants/network', () => {
+  const constants = jest.requireActual('../../../../shared/constants/network');
+  return {
+    ...constants,
+    SHOULD_SHOW_LINEA_TESTNET_NETWORK: true,
+  };
+});
+
 describe('Network Dropdown', () => {
   const createMockStore = configureMockStore([thunk]);
 
@@ -103,6 +112,13 @@ describe('Network Dropdown', () => {
       expect(localhostColorIndicator).toBeInTheDocument();
     });
 
+    it('checks background color for seventh ColorIndicator', () => {
+      const lineaColorIndicator = screen.queryByTestId(
+        'color-icon-lineatestnet',
+      );
+      expect(lineaColorIndicator).toBeInTheDocument();
+    });
+
     it('checks that Add Network button is rendered', () => {
       const addNetworkButton = screen.queryByText('Add network');
       expect(addNetworkButton).toBeInTheDocument();
@@ -110,8 +126,7 @@ describe('Network Dropdown', () => {
 
     it('shows test networks in the dropdown', () => {
       const networkItems = screen.queryAllByTestId(/network-item/u);
-
+      expect(networkItems).toHaveLength(7);
-      expect(networkItems).toHaveLength(6);
     });
   });
 

ui/components/app/loading-network-screen/loading-network-screen.component.js

@@ -49,6 +49,8 @@ export default class LoadingNetworkScreen extends PureComponent {
         return t('connectingToGoerli');
       case NETWORK_TYPES.SEPOLIA:
         return t('connectingToSepolia');
+      case NETWORK_TYPES.LINEA_TESTNET:
+        return t('connectingToLineaTestnet');
       default:
         return t('connectingTo', [providerId]);
     }

ui/components/app/signature-request-original/signature-request-original.component.js

@@ -73,6 +73,8 @@ export default class SignatureRequestOriginal extends Component {
         return t('goerli');
       case NETWORK_TYPES.SEPOLIA:
         return t('sepolia');
+      case NETWORK_TYPES.LINEA_TESTNET:
+        return t('lineatestnet');
       case NETWORK_TYPES.LOCALHOST:
         return t('localhost');
       default:

ui/components/app/signature-request/signature-request.component.js

@@ -110,6 +110,8 @@ export default class SignatureRequest extends PureComponent {
         return t('goerli');
       case NETWORK_TYPES.SEPOLIA:
         return t('sepolia');
+      case NETWORK_TYPES.LINEA_TESTNET:
+        return t('lineatestnet');
       case NETWORK_TYPES.LOCALHOST:
         return t('localhost');
       default:

ui/components/ui/typography/typography.js

@@ -33,6 +33,8 @@ export const ValidColors = [
   Color.sepolia,
   Color.goerliInverse,
   Color.sepoliaInverse,
+  Color.lineaTestnet,
+  Color.lineaTestnetInverse,
 ];
 
 export const ValidTags = [

ui/css/design-system/colors.scss

@@ -41,6 +41,8 @@ $color-map: (
   'sepolia': --color-network-sepolia-default,
   'goerli-inverse':--color-network-goerli-inverse,
   'sepolia-inverse': --color-network-sepolia-inverse,
+  'lineatestnet': --color-network-linea-testnet-default,
+  'lineatestnet-inverse': --color-network-linea-testnet-inverse,
   'localhost': --color-network-localhost-default,
   'transparent': --transparent,
   'flask-purple': --color-flask-default,

ui/css/itcss/components/network.scss

@@ -25,6 +25,10 @@
     background-color: rgba(207, 181, 240, 0.7) !important;
   }
 
+  &.linea-test-network .menu-icon-circle div {
+    background-color: rgba(0, 0, 0, 0.7) !important;
+  }
+
   &.localhost-network .menu-icon-circle div {
     background-color: rgba(3, 135, 137, 0.7) !important;
   }

ui/css/utilities/colors.scss

@@ -4,6 +4,8 @@
   --mainnet: #29b6af;
   --inherit: inherit;
   --transparent: transparent;
+  --color-network-linea-testnet-default: #000;
+  --color-network-linea-testnet-inverse: #fcfcfc;
   // DO NOT CHANGE
   // Required for the QR reader to work properly
   --qr-code-white-background: #fff;

ui/helpers/constants/design-system.ts

@@ -46,6 +46,8 @@ export enum Color {
   mainnet = 'mainnet',
   goerli = 'goerli',
   sepolia = 'sepolia',
+  lineaTestnet = 'lineatestnet',
+  lineaTestnetInverse = 'lineatestnet-inverse',
   transparent = 'transparent',
   localhost = 'localhost',
   inherit = 'inherit',
@@ -75,6 +77,7 @@ export enum BackgroundColor {
   mainnet = 'mainnet',
   goerli = 'goerli',
   sepolia = 'sepolia',
+  lineaTestnet = 'lineatestnet',
   transparent = 'transparent',
   localhost = 'localhost',
 }
@@ -100,6 +103,7 @@ export enum BorderColor {
   mainnet = 'mainnet',
   goerli = 'goerli',
   sepolia = 'sepolia',
+  lineaTestnet = 'lineatestnet',
   transparent = 'transparent',
   localhost = 'localhost',
 }
@@ -122,6 +126,8 @@ export enum TextColor {
   inherit = 'inherit',
   goerli = 'goerli',
   sepolia = 'sepolia',
+  lineaTestnet = 'lineatestnet',
+  lineaTestnetInverse = 'lineatestnet-inverse',
   goerliInverse = 'goerli-inverse',
   sepoliaInverse = 'sepolia-inverse',
 }
@@ -144,6 +150,8 @@ export enum IconColor {
   inherit = 'inherit',
   goerli = 'goerli',
   sepolia = 'sepolia',
+  lineaTestnet = 'lineatestnet',
+  lineaTestnetInverse = 'lineatestnet-inverse',
   goerliInverse = 'goerli-inverse',
   sepoliaInverse = 'sepolia-inverse',
 }

ui/helpers/constants/settings.js

@@ -254,6 +254,13 @@ export const SETTINGS_CONSTANTS = [
     route: `${NETWORKS_ROUTE}#networks-sepolia`,
     icon: 'fa fa-plug',
   },
+  {
+    tabMessage: (t) => t('networks'),
+    sectionMessage: (t) => t('lineatestnet'),
+    descriptionMessage: (t) => t('lineatestnet'),
+    route: `${NETWORKS_ROUTE}#networks-lineatestnet`,
+    icon: 'fa fa-plug',
+  },
   {
     tabMessage: (t) => t('networks'),
     sectionMessage: (t) => t('localhost'),

ui/helpers/utils/settings-search.test.js

@@ -177,7 +177,7 @@ describe('Settings Search Utils', () => {
     });
 
     it('should get good network section number', () => {
-      expect(getNumberOfSettingsInSection(t, t('networks'))).toStrictEqual(4);
+      expect(getNumberOfSettingsInSection(t, t('networks'))).toStrictEqual(5);
     });
 
     it('should get good experimental section number', () => {

ui/helpers/utils/util.js

@@ -62,6 +62,7 @@ export function isDefaultMetaMaskChain(chainId) {
     chainId === CHAIN_IDS.MAINNET ||
     chainId === CHAIN_IDS.GOERLI ||
     chainId === CHAIN_IDS.SEPOLIA ||
+    chainId === CHAIN_IDS.LINEA_TESTNET ||
     chainId === CHAIN_IDS.LOCALHOST
   ) {
     return true;

ui/helpers/utils/util.test.js

@@ -1,5 +1,6 @@
 import Bowser from 'bowser';
 import { BN } from 'ethereumjs-util';
+import { CHAIN_IDS } from '../../../shared/constants/network';
 import { addHexPrefixToObjectValues } from '../../../shared/lib/swaps-utils';
 import { toPrecisionWithoutTrailingZeros } from '../../../shared/lib/transactions-controller-utils';
 import * as util from './util';
@@ -907,4 +908,14 @@ describe('util', () => {
       ).toStrictEqual('The Quick Brown \\u202EFox Jumps Over The Lazy Dog');
     });
   });
+
+  describe('isDefaultMetaMaskChain()', () => {
+    it('should return true if the provided chainId is a default MetaMask chain', () => {
+      expect(util.isDefaultMetaMaskChain(CHAIN_IDS.GOERLI)).toBeTruthy();
+    });
+
+    it('should return false if the provided chainId is a not default MetaMask chain', () => {
+      expect(util.isDefaultMetaMaskChain(CHAIN_IDS.CELO)).toBeFalsy();
+    });
+  });
 });

ui/pages/routes/routes.component.js

@@ -522,6 +522,8 @@ export default class Routes extends Component {
         return t('connectingToGoerli');
       case NETWORK_TYPES.SEPOLIA:
         return t('connectingToSepolia');
+      case NETWORK_TYPES.LINEA_TESTNET:
+        return t('connectingToLineaTestnet');
       default:
         return t('connectingTo', [providerId]);
     }

ui/pages/settings/networks-tab/networks-tab.constants.js

@@ -4,6 +4,7 @@ import {
   CURRENCY_SYMBOLS,
   CHAIN_IDS,
   NETWORK_TYPES,
+  LINEA_TESTNET_RPC_URL,
 } from '../../../../shared/constants/network';
 
 const defaultNetworksData = [
@@ -43,6 +44,15 @@ const defaultNetworksData = [
     ticker: TEST_NETWORK_TICKER_MAP[NETWORK_TYPES.SEPOLIA],
     blockExplorerUrl: 'https://sepolia.etherscan.io',
   },
+  {
+    labelKey: NETWORK_TYPES.LINEA_TESTNET,
+    iconColor: '#234FD5',
+    providerType: NETWORK_TYPES.LINEA_TESTNET,
+    rpcUrl: LINEA_TESTNET_RPC_URL,
+    chainId: CHAIN_IDS.LINEA_TESTNET,
+    ticker: TEST_NETWORK_TICKER_MAP[NETWORK_TYPES.LINEA_TESTNET],
+    blockExplorerUrl: 'https://explorer.goerli.linea.build',
+  },
 ];
 
 export { defaultNetworksData };

ui/pages/settings/networks-tab/networks-tab.js

@@ -20,7 +20,9 @@ import {
   getProvider,
 } from '../../../selectors';
 import {
+  CHAIN_IDS,
   NETWORK_TYPES,
+  SHOULD_SHOW_LINEA_TESTNET_NETWORK,
   TEST_CHAINS,
 } from '../../../../shared/constants/network';
 import { defaultNetworksData } from './networks-tab.constants';
@@ -53,8 +55,8 @@ const NetworksTab = ({ addNewNetwork }) => {
     getNetworksTabSelectedNetworkConfigurationId,
   );
 
-  const networkConfigurationsList = Object.entries(networkConfigurations).map(
+  const networkConfigurationsList = Object.entries(networkConfigurations)
-    ([networkConfigurationId, networkConfiguration]) => {
+    .map(([networkConfigurationId, networkConfiguration]) => {
       return {
         label: networkConfiguration.nickname,
         iconColor: 'var(--color-icon-alternative)',
@@ -66,10 +68,15 @@ const NetworksTab = ({ addNewNetwork }) => {
         isATestNetwork: TEST_CHAINS.includes(networkConfiguration.chainId),
         networkConfigurationId,
       };
-    },
+    })
-  );
+    .filter((network) => network.chainId !== CHAIN_IDS.LINEA_TESTNET);
 
-  const networksToRender = [...defaultNetworks, ...networkConfigurationsList];
+  let networksToRender = [...defaultNetworks, ...networkConfigurationsList];
+  if (!SHOULD_SHOW_LINEA_TESTNET_NETWORK) {
+    networksToRender = networksToRender.filter(
+      (network) => network.chainId !== CHAIN_IDS.LINEA_TESTNET,
+    );
+  }
   let selectedNetwork =
     networksToRender.find(
       (network) =>