feat: impl themekit client api

src/index.ts

@@ -0,0 +1,12 @@
+import toColor from 'color'
+
+import { ThemeTokens } from './core/token.h'
+
+export function theme(shape1: ThemeTokens, shape2?: ThemeTokens): ThemeTokens {
+  return shape1
+}
+
+export function color(inputColor: string, options: { h?: number; s?: number; l?: number }): string {
+  let color = toColor(inputColor)
+  return color.hsl(options.h, options.s, options.l).hex()
+}