feat: tier weights

src/stitches.config.ts

@@ -1,7 +1,6 @@
-import { slateDark } from '@radix-ui/colors';
+import { slate, slateDark } from '@radix-ui/colors';
 import { createColors } from 'bepaint';
 
 // this isn't really a stitches config, but the object is compliant
-export const theme = {
-  colors: createColors(slateDark),
-};
+export const theme = { colors: createColors(slateDark) };
+export const themeLight = { colors: createColors(slate) };