93 lines
4.0 KiB
Markdown
93 lines
4.0 KiB
Markdown
# Theming Element
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Themes are a very basic way of providing simple alternative look & feels to the
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Element app via CSS & custom imagery.
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To define a theme for Element:
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1. Pick a name, e.g. `teal`. at time of writing we have `light` and `dark`.
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2. Fork `res/themes/dark/css/dark.pcss` to be `teal.pcss`
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3. Fork `res/themes/dark/css/_base.pcss` to be `_teal.pcss`
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4. Override variables in `_teal.pcss` as desired. You may wish to delete ones
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which don't differ from `_base.pcss`, to make it clear which are being
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overridden. If every single colour is being changed (as per `_dark.pcss`)
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then you might as well keep them all.
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5. Add the theme to the list of entrypoints in webpack.config.js
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6. Add the theme to the list of themes in theme.ts
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7. Sit back and admire your handywork.
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In future, the assets for a theme will probably be gathered together into a
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single directory tree.
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# Custom Themes
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Themes derived from the built in themes may also be defined in settings.
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To avoid name collisions, the internal name of a theme is
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`custom-${theme.name}`. So if you want to set the custom theme below as the
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default theme, you would use `default_theme: "custom-Electric Blue"`.
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e.g. in config.json:
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```
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"setting_defaults": {
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"custom_themes": [
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{
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"name": "Electric Blue",
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"is_dark": false,
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"fonts": {
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"faces": [
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{
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"font-family": "Inter",
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"src": [{"url": "/fonts/Inter.ttf", "format": "ttf"}]
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}
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],
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"general": "Inter, sans",
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"monospace": "'Courier New'"
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},
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"colors": {
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"accent-color": "#3596fc",
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"primary-color": "#368bd6",
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"warning-color": "#ff4b55",
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"sidebar-color": "#27303a",
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"roomlist-background-color": "#f3f8fd",
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"roomlist-text-color": "#2e2f32",
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"roomlist-text-secondary-color": "#61708b",
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"roomlist-highlights-color": "#ffffff",
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"roomlist-separator-color": "#e3e8f0",
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"timeline-background-color": "#ffffff",
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"timeline-text-color": "#2e2f32",
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"timeline-text-secondary-color": "#61708b",
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"timeline-highlights-color": "#f3f8fd",
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},
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"compound": {
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"--cpd-color-icon-accent-tertiary": "var(--cpd-color-blue-800)",
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"--cpd-color-text-action-accent": "var(--cpd-color-blue-900)"
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}
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}, {
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"name": "Deep Purple",
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"is_dark": true,
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"colors": {
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"accent-color": "#6503b3",
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"primary-color": "#368bd6",
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"warning-color": "#b30356",
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"sidebar-color": "#15171B",
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"roomlist-background-color": "#22262E",
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"roomlist-text-color": "#A1B2D1",
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"roomlist-text-secondary-color": "#EDF3FF",
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"roomlist-highlights-color": "#343A46",
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"roomlist-separator-color": "#a1b2d1",
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"timeline-background-color": "#181b21",
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"timeline-text-color": "#EDF3FF",
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"timeline-text-secondary-color": "#A1B2D1",
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"timeline-highlights-color": "#22262E"
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}
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}
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]
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}
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```
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`compound` may contain overrides for any [semantic design token](https://compound.element.io/?path=/docs/tokens-semantic-colors--docs) belonging to our design system. The above example shows how you might change the accent color to blue by setting the relevant semantic tokens to refer to blue [base tokens](https://compound.element.io/?path=/docs/tokens-color-palettes--docs).
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All properties in `fonts` are optional, and will default to the standard Riot fonts.
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