metamask-extension/ui/components/app/edit-gas-fee-popover/edit-gas-item/index.scss

.edit-gas-item {
  border-radius: 24px;
  background: white;
  color: var(--ui-4);
  cursor: pointer;
  font-size: 12px;
  display: flex;
  align-items: center;
  margin: 12px 0;
  padding: 4px 12px;
  height: 32px;
  width: 100%;

  &:hover:not([disabled]) {
    background-color: var(--primary-2);
  }

  &--selected {
    background-color: var(--ui-1);
  }

  button.edit-gas-item--disabled[disabled] {
    opacity: 0.25;
    pointer-events: none;
  }

  &__name {
    display: inline-flex;
    align-items: center;
    color: var(--ui-black);
    font-size: 12px;
    font-weight: bold;
    white-space: nowrap;
    width: 36%;

    &__sufix {
      font-weight: 400;
      margin-left: 4px;
    }
  }

  &__icon {
    font-size: 20px;
    line-height: 1;
    margin-right: 4px;

    &-custom {
      font-size: 22px;
      line-height: 1;
    }
  }

  &__maxfee {
    position: relative;
  }

  &__time-estimate {
    display: inline-block;
    text-align: left;
    width: 24%;
  }

  &__fee-estimate {
    display: inline-block;
    width: 30%;
    white-space: nowrap;
  }

  &__tooltip {
    display: inline-block;
    text-align: right;
    width: 10%;

    .info-tooltip {
      display: inline-block;
    }
  }

  &__time-estimate-low,
  &__fee-estimate-high {
    color: var(--secondary-1);
  }

  &__time-estimate-medium,
  &__time-estimate-high {
    color: var(--success-3);
  }
}