fix(projects): 修复主题配置

src/utils/common/color.ts

@@ -7,3 +7,11 @@ import chroma from 'chroma-js';
 export function brightenColor(color: string) {
   return chroma(color).brighten(0.5).hex();
 }
+
+/**
+ * 更暗的颜色
+ * @param color
+ */
+export function darkenColor(color: string) {
+  return chroma(color).darken(0.5).hex();
+}

src/utils/common/index.ts

@@ -12,4 +12,4 @@ export {
   isMap
 } from './typeof';
 
-export { brightenColor } from './color';
+export { brightenColor, darkenColor } from './color';

src/utils/index.ts

@@ -11,5 +11,6 @@ export {
   isRegExp,
   isSet,
   isMap,
-  brightenColor
+  brightenColor,
+  darkenColor
 } from './common';