Add forced-colors variant

Also add a contrast-custom variant to match custom contrast preferences

Author: lukewarlow

src/corePlugins.js

@@ -459,6 +459,11 @@ export let variantPlugins = {
   prefersContrastVariants: ({ addVariant }) => {
     addVariant('contrast-more', '@media (prefers-contrast: more)')
     addVariant('contrast-less', '@media (prefers-contrast: less)')
+    addVariant('contrast-custom', '@media (prefers-contrast: custom)')
+  },
+
+  forcedColorsVariants: ({ addVariant }) => {
+    addVariant('forced-colors', '@media (forced-colors: active)')
   },
 }
 

src/lib/setupContextUtils.js

@@ -759,6 +759,7 @@ function resolvePlugins(context, root) {
     variantPlugins['printVariant'],
     variantPlugins['screenVariants'],
     variantPlugins['orientationVariants'],
+    variantPlugins['forcedColorsVariants'],
   ]
 
   return [...corePluginList, ...beforeVariants, ...userPlugins, ...afterVariants, ...layerPlugins]

tests/plugins/variants/forcedColorsVariants.test.js

@@ -0,0 +1,9 @@
+import { css, quickVariantPluginTest } from '../../util/run'
+
+quickVariantPluginTest('forcedColorsVariants').toMatchFormattedCss(css`
+  @media (forced-colors: active) {
+    .forced-colors\:flex {
+      display: flex;
+    }
+  }
+`)

tests/plugins/variants/prefersContrastVariants.test.js

@@ -11,4 +11,9 @@ quickVariantPluginTest('prefersContrastVariants').toMatchFormattedCss(css`
       display: flex;
     }
   }
+  @media (prefers-contrast: custom) {
+    .contrast-custom\:flex {
+      display: flex;
+    }
+  }
 `)