[ALF] Theme & palette cleanup (#4769)

* Invert primary scale

* Invert negative palette

* Replace theme specific styles in Toggle

* Remove theme specific colors from Button, improves secondary solid on dark mode

* TextField

* Remove from MessageItem

* Threadgate editor

* IconCircle

* Muted words

* Generate themes from hues

* Cleanup

* Deprecate more values, fix circular import

* Invert positive too, hardly use

* Button tweaks, some theme diffs

* Match disabled state for negative button

* Fix unread noty bg

src/alf/index.tsx

@@ -1,7 +1,9 @@
 import React from 'react'
 import {Dimensions} from 'react-native'
 
-import * as themes from '#/alf/themes'
+import {createThemes, defaultTheme} from '#/alf/themes'
+import {Theme, ThemeName} from '#/alf/types'
+import {BLUE_HUE, GREEN_HUE, RED_HUE} from '#/alf/util/colorGeneration'
 
 export {atoms} from '#/alf/atoms'
 export * as tokens from '#/alf/tokens'
@@ -39,8 +41,8 @@ function getActiveBreakpoints({width}: {width: number}) {
  * Context
  */
 export const Context = React.createContext<{
-  themeName: themes.ThemeName
-  theme: themes.Theme
+  themeName: ThemeName
+  theme: Theme
   breakpoints: {
     active: BreakpointName | undefined
     gtPhone: boolean
@@ -49,7 +51,7 @@ export const Context = React.createContext<{
   }
 }>({
   themeName: 'light',
-  theme: themes.light,
+  theme: defaultTheme,
   breakpoints: {
     active: undefined,
     gtPhone: false,
@@ -61,7 +63,16 @@ export const Context = React.createContext<{
 export function ThemeProvider({
   children,
   theme: themeName,
-}: React.PropsWithChildren<{theme: themes.ThemeName}>) {
+}: React.PropsWithChildren<{theme: ThemeName}>) {
+  const themes = React.useMemo(() => {
+    return createThemes({
+      hues: {
+        primary: BLUE_HUE,
+        negative: RED_HUE,
+        positive: GREEN_HUE,
+      },
+    })
+  }, [])
   const theme = themes[themeName]
   const [breakpoints, setBreakpoints] = React.useState(() =>
     getActiveBreakpoints({width: Dimensions.get('window').width}),

src/alf/tokens.ts

@@ -1,77 +1,6 @@
-import {
-  BLUE_HUE,
-  generateScale,
-  GREEN_HUE,
-  RED_HUE,
-} from '#/alf/util/colorGeneration'
-
-export const scale = generateScale(6, 100)
-// dim shifted 6% lighter
-export const dimScale = generateScale(12, 100)
-
 export const color = {
-  trueBlack: '#000000',
-
   temp_purple: 'rgb(105 0 255)',
   temp_purple_dark: 'rgb(83 0 202)',
-
-  gray_0: `hsl(${BLUE_HUE}, 20%, ${scale[14]}%)`,
-  gray_25: `hsl(${BLUE_HUE}, 20%, ${scale[13]}%)`,
-  gray_50: `hsl(${BLUE_HUE}, 20%, ${scale[12]}%)`,
-  gray_100: `hsl(${BLUE_HUE}, 20%, ${scale[11]}%)`,
-  gray_200: `hsl(${BLUE_HUE}, 20%, ${scale[10]}%)`,
-  gray_300: `hsl(${BLUE_HUE}, 20%, ${scale[9]}%)`,
-  gray_400: `hsl(${BLUE_HUE}, 20%, ${scale[8]}%)`,
-  gray_500: `hsl(${BLUE_HUE}, 20%, ${scale[7]}%)`,
-  gray_600: `hsl(${BLUE_HUE}, 24%, ${scale[6]}%)`,
-  gray_700: `hsl(${BLUE_HUE}, 24%, ${scale[5]}%)`,
-  gray_800: `hsl(${BLUE_HUE}, 28%, ${scale[4]}%)`,
-  gray_900: `hsl(${BLUE_HUE}, 28%, ${scale[3]}%)`,
-  gray_950: `hsl(${BLUE_HUE}, 28%, ${scale[2]}%)`,
-  gray_975: `hsl(${BLUE_HUE}, 28%, ${scale[1]}%)`,
-  gray_1000: `hsl(${BLUE_HUE}, 28%, ${scale[0]}%)`,
-
-  blue_25: `hsl(${BLUE_HUE}, 99%, 97%)`,
-  blue_50: `hsl(${BLUE_HUE}, 99%, 95%)`,
-  blue_100: `hsl(${BLUE_HUE}, 99%, 90%)`,
-  blue_200: `hsl(${BLUE_HUE}, 99%, 80%)`,
-  blue_300: `hsl(${BLUE_HUE}, 99%, 70%)`,
-  blue_400: `hsl(${BLUE_HUE}, 99%, 60%)`,
-  blue_500: `hsl(${BLUE_HUE}, 99%, 53%)`,
-  blue_600: `hsl(${BLUE_HUE}, 99%, 42%)`,
-  blue_700: `hsl(${BLUE_HUE}, 99%, 34%)`,
-  blue_800: `hsl(${BLUE_HUE}, 99%, 26%)`,
-  blue_900: `hsl(${BLUE_HUE}, 99%, 18%)`,
-  blue_950: `hsl(${BLUE_HUE}, 99%, 10%)`,
-  blue_975: `hsl(${BLUE_HUE}, 99%, 7%)`,
-
-  green_25: `hsl(${GREEN_HUE}, 82%, 97%)`,
-  green_50: `hsl(${GREEN_HUE}, 82%, 95%)`,
-  green_100: `hsl(${GREEN_HUE}, 82%, 90%)`,
-  green_200: `hsl(${GREEN_HUE}, 82%, 80%)`,
-  green_300: `hsl(${GREEN_HUE}, 82%, 70%)`,
-  green_400: `hsl(${GREEN_HUE}, 82%, 60%)`,
-  green_500: `hsl(${GREEN_HUE}, 82%, 50%)`,
-  green_600: `hsl(${GREEN_HUE}, 82%, 42%)`,
-  green_700: `hsl(${GREEN_HUE}, 82%, 34%)`,
-  green_800: `hsl(${GREEN_HUE}, 82%, 26%)`,
-  green_900: `hsl(${GREEN_HUE}, 82%, 18%)`,
-  green_950: `hsl(${GREEN_HUE}, 82%, 10%)`,
-  green_975: `hsl(${GREEN_HUE}, 82%, 7%)`,
-
-  red_25: `hsl(${RED_HUE}, 91%, 97%)`,
-  red_50: `hsl(${RED_HUE}, 91%, 95%)`,
-  red_100: `hsl(${RED_HUE}, 91%, 90%)`,
-  red_200: `hsl(${RED_HUE}, 91%, 80%)`,
-  red_300: `hsl(${RED_HUE}, 91%, 70%)`,
-  red_400: `hsl(${RED_HUE}, 91%, 60%)`,
-  red_500: `hsl(${RED_HUE}, 91%, 50%)`,
-  red_600: `hsl(${RED_HUE}, 91%, 42%)`,
-  red_700: `hsl(${RED_HUE}, 91%, 34%)`,
-  red_800: `hsl(${RED_HUE}, 91%, 26%)`,
-  red_900: `hsl(${RED_HUE}, 91%, 18%)`,
-  red_950: `hsl(${RED_HUE}, 91%, 10%)`,
-  red_975: `hsl(${RED_HUE}, 91%, 7%)`,
 } as const
 
 export const space = {
@@ -178,10 +107,3 @@ export const gradients = {
     hover_value: '#755B62',
   },
 } as const
-
-export type Color = keyof typeof color
-export type Space = keyof typeof space
-export type FontSize = keyof typeof fontSize
-export type LineHeight = keyof typeof lineHeight
-export type BorderRadius = keyof typeof borderRadius
-export type FontWeight = keyof typeof fontWeight

src/alf/types.ts

@@ -1,21 +1,4 @@
-import {StyleProp, ViewStyle, TextStyle} from 'react-native'
-
-type LiteralToCommon<T extends PropertyKey> = T extends number
-  ? number
-  : T extends string
-  ? string
-  : T extends symbol
-  ? symbol
-  : never
-
-/**
- * @see https://stackoverflow.com/questions/68249999/use-as-const-in-typescript-without-adding-readonly-modifiers
- */
-export type Mutable<T> = {
-  -readonly [K in keyof T]: T[K] extends PropertyKey
-    ? LiteralToCommon<T[K]>
-    : Mutable<T[K]>
-}
+import {StyleProp, TextStyle, ViewStyle} from 'react-native'
 
 export type TextStyleProp = {
   style?: StyleProp<TextStyle>
@@ -24,3 +7,156 @@ export type TextStyleProp = {
 export type ViewStyleProp = {
   style?: StyleProp<ViewStyle>
 }
+
+export type ThemeName = 'light' | 'dim' | 'dark'
+export type Palette = {
+  white: string
+  black: string
+
+  contrast_25: string
+  contrast_50: string
+  contrast_100: string
+  contrast_200: string
+  contrast_300: string
+  contrast_400: string
+  contrast_500: string
+  contrast_600: string
+  contrast_700: string
+  contrast_800: string
+  contrast_900: string
+  contrast_950: string
+  contrast_975: string
+
+  primary_25: string
+  primary_50: string
+  primary_100: string
+  primary_200: string
+  primary_300: string
+  primary_400: string
+  primary_500: string
+  primary_600: string
+  primary_700: string
+  primary_800: string
+  primary_900: string
+  primary_950: string
+  primary_975: string
+
+  positive_25: string
+  positive_50: string
+  positive_100: string
+  positive_200: string
+  positive_300: string
+  positive_400: string
+  positive_500: string
+  positive_600: string
+  positive_700: string
+  positive_800: string
+  positive_900: string
+  positive_950: string
+  positive_975: string
+
+  negative_25: string
+  negative_50: string
+  negative_100: string
+  negative_200: string
+  negative_300: string
+  negative_400: string
+  negative_500: string
+  negative_600: string
+  negative_700: string
+  negative_800: string
+  negative_900: string
+  negative_950: string
+  negative_975: string
+}
+export type ThemedAtoms = {
+  text: {
+    color: string
+  }
+  text_contrast_low: {
+    color: string
+  }
+  text_contrast_medium: {
+    color: string
+  }
+  text_contrast_high: {
+    color: string
+  }
+  text_inverted: {
+    color: string
+  }
+  bg: {
+    backgroundColor: string
+  }
+  bg_contrast_25: {
+    backgroundColor: string
+  }
+  bg_contrast_50: {
+    backgroundColor: string
+  }
+  bg_contrast_100: {
+    backgroundColor: string
+  }
+  bg_contrast_200: {
+    backgroundColor: string
+  }
+  bg_contrast_300: {
+    backgroundColor: string
+  }
+  bg_contrast_400: {
+    backgroundColor: string
+  }
+  bg_contrast_500: {
+    backgroundColor: string
+  }
+  bg_contrast_600: {
+    backgroundColor: string
+  }
+  bg_contrast_700: {
+    backgroundColor: string
+  }
+  bg_contrast_800: {
+    backgroundColor: string
+  }
+  bg_contrast_900: {
+    backgroundColor: string
+  }
+  bg_contrast_950: {
+    backgroundColor: string
+  }
+  bg_contrast_975: {
+    backgroundColor: string
+  }
+  border_contrast_low: {
+    borderColor: string
+  }
+  border_contrast_medium: {
+    borderColor: string
+  }
+  border_contrast_high: {
+    borderColor: string
+  }
+  shadow_sm: {
+    shadowRadius: number
+    shadowOpacity: number
+    elevation: number
+    shadowColor: string
+  }
+  shadow_md: {
+    shadowRadius: number
+    shadowOpacity: number
+    elevation: number
+    shadowColor: string
+  }
+  shadow_lg: {
+    shadowRadius: number
+    shadowOpacity: number
+    elevation: number
+    shadowColor: string
+  }
+}
+export type Theme = {
+  name: ThemeName
+  palette: Palette
+  atoms: ThemedAtoms
+}

src/alf/util/colorGeneration.ts

@@ -15,3 +15,7 @@ export function generateScale(start: number, end: number) {
     return start + range * stop
   })
 }
+
+export const defaultScale = generateScale(6, 100)
+// dim shifted 6% lighter
+export const dimScale = generateScale(12, 100)

src/alf/util/themeSelector.ts

@@ -1,4 +1,4 @@
-import {ThemeName} from '#/alf/themes'
+import {ThemeName} from '#/alf/types'
 
 export function select<T>(name: ThemeName, options: Record<ThemeName, T>) {
   switch (name) {

src/alf/util/useColorModeTheme.ts

@@ -4,7 +4,8 @@ import * as SystemUI from 'expo-system-ui'
 
 import {isWeb} from 'platform/detection'
 import {useThemePrefs} from 'state/shell'
-import {dark, dim, light, ThemeName} from '#/alf/themes'
+import {dark, dim, light} from '#/alf/themes'
+import {ThemeName} from '#/alf/types'
 
 export function useColorModeTheme(): ThemeName {
   const theme = useThemeName()