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metamask-extension/ui/components/component-library/icon/README.mdx
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add icons auto size (#16027)
Update ui/components/component-library/icon/README.mdx

Co-authored-by: George Marshall <george.marshall@consensys.net>

Update ui/components/component-library/icon/icon.stories.js

Co-authored-by: George Marshall <george.marshall@consensys.net>

Update ui/helpers/constants/design-system.js

Co-authored-by: George Marshall <george.marshall@consensys.net>

story fix

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update auto demo and fix inline style
2022-09-29 08:33:34 -07:00

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import { Story, Canvas, ArgsTable } from '@storybook/addon-docs';
import { Icon } from './icon';
# Icon
The `Icon` component in conjunction with `ICON_NAMES` can be used for all icons in the extension
<Canvas>
<Story id="ui-components-component-library-icon-icon-stories-js--default-story" />
</Canvas>
## Props
The `Icon` accepts all props below as well as all [Box](/docs/ui-components-ui-box-box-stories-js--default-story#props) component props
<ArgsTable of={Icon} />
### Name
Use the `name` prop and the `ICON_NAMES` object to change the icon.
Use the [IconSearch](/ui-components-component-library-icon-icon-stories-js--name) story to find the icon you want to use.
```jsx
import { Icon, ICON_NAMES } from '../ui/component-library';
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} />
<Icon name={ICON_NAMES.BANK_FILLED} />
<Icon name={ICON_NAMES.CALCULATOR_FILLED} />
<Icon name={ICON_NAMES.COIN_FILLED} />
```
<Canvas>
<Story id="ui-components-component-library-icon-icon-stories-js--name" />
</Canvas>
### Size
Use the `size` prop and the `SIZES` object from `./ui/helpers/constants/design-system.js` to change the size of `Icon`. Defaults to `SIZES.SM`
Possible sizes include:
- `SIZES.XXS` 10px
- `SIZES.XS` 12px
- `SIZES.SM` 16px
- `SIZES.MD` 20px
- `SIZES.LG` 24px
- `SIZES.XL` 32px
- `SIZES.AUTO` inherits the font-size from parent element. This is useful for inline icons in text.
<Canvas>
<Story id="ui-components-component-library-icon-icon-stories-js--size" />
</Canvas>
```jsx
import { SIZES } from '../../../helpers/constants/design-system';
import { Icon, ICON_NAMES } from '../ui/component-library';
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} size={SIZES.XXS} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} size={SIZES.XS} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} size={SIZES.SM} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} size={SIZES.MD} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} size={SIZES.LG} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} size={SIZES.XL} />
<Text as="p" variant={TEXT.BODY_SM}>
<Icon size={SIZES.AUTO} /> Auto also exists and inherits the
font-size of the parent element.
</Text>
```
### Color
Use the `color` prop and the `COLORS` object from `./ui/helpers/constants/design-system.js` to change the color of `Icon`. Defaults to `COLORS.INHERIT` which will use the text color of the parent element. This is useful for inline icons.
<Canvas>
<Story id="ui-components-component-library-icon-icon-stories-js--color" />
</Canvas>
```jsx
import { COLORS } from '../../../helpers/constants/design-system';
import { Icon, ICON_NAMES } from '../ui/component-library';
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.INHERIT} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.ICON_DEFAULT} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.ICON_ALTERNATIVE} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.ICON_MUTED} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.OVERLAY_INVERSE} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.PRIMARY_DEFAULT} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.PRIMARY_INVERSE} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.ERROR_DEFAULT} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.ERROR_INVERSE} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.SUCCESS_DEFAULT} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.SUCCESS_INVERSE} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.WARNING_DEFAULT} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.WARNING_INVERSE} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.INFO_DEFAULT} />
<Icon name={ICON_NAMES.ADD_SQUARE_FILLED} color={COLORS.INFO_INVERSE} />
```
### Adding a new icon
To add a new icon the only thing you need to do is add the icon svg file to `app/images/icons`. To ensure that the icon is added correctly follow these steps:
#### Step 1.
Optimize the svg using [Fontastic](https://fontastic.me/). This will remove any unnecessary code from the svg. Your svg should only contain a single path.
Example of a correctly optimized svg:
```
<svg xmlns="http://www.w3.org/2000/svg" id="icon-add-square-filled" viewBox="0 0 512 512">
<path d="m337 51l-171 0c-75 0-119 45-119 119l0 172c0 74 44 119 119 119l171 0c75 0 119-45 119-119l0-172c1-74-44-119-119-119z m-3 220l-67 0 0 67c0 8-7 15-15 15-9 0-16-7-16-15l0-67-66 0c-9 0-16-7-16-15 0-8 7-15 16-15l66 0 0-67c0-8 7-15 16-15 8 0 15 7 15 15l0 67 67 0c8 0 15 7 15 15 0 8-7 15-15 15z"/>
</svg>
```
If your svg **does not** contain a single path, you will need to get a designer to join all paths and outline strokes into a single path.
#### Step 2.
Add your optimized svg file to to `app/images/icons` and ensure the icon name starts with `icon-` e.g. `icon-add-square-filled.svg`
#### Step 3.
Run `yarn start` to generate the `ICON_NAMES` with your added icon.
If you have any questions please reach out to the design system team in the [#metamask-design-system](https://consensys.slack.com/archives/C0354T27M5M) channel on slack.