UI: Improve theme presets

.changeset/late-ants-study.md

@@ -0,0 +1,5 @@
+---
+'fumadocs-ui': patch
+---
+
+Improve theme presets

packages/ui/src/theme/colors.ts

@@ -28,7 +28,7 @@ const defaultPreset: Preset = {
     'popover-foreground': '0 0% 88%',
     card: '0 0% 6.0%',
     'card-foreground': '0 0% 98%',
-    border: '0 0% 18%',
+    border: '0 0% 15%',
     primary: '0 0% 98%',
     'primary-foreground': '0 0% 9%',
     secondary: '0 0% 12.9%',
@@ -260,6 +260,14 @@ const dusk: Preset = {
     'secondary-foreground': '250 20% 90%',
     'accent-foreground': '340 5% 90%',
   },
+  css: {
+    '#nd-sidebar': {
+      backgroundColor: 'hsl(250 20% 90%)',
+    },
+    '.dark #nd-sidebar': {
+      backgroundColor: 'hsl(240 20% 5%)',
+    },
+  },
 };
 
 const vitepress: Preset = {