Pull request #2837: 无JIRA任务 暗色系popover头背景

Merge in VISUAL/fineui from ~WINDY/fui:master to master

* commit 'f104dad22dc400d3365d3d6fc8bc61dc91081f2f':
  无JIRA任务 暗色系popover头背景

bi.lessconfig.json

@@ -38,5 +38,7 @@
   "@color-bi-color-toast-warning": "#FAAA39",
   "@color-bi-color-toast-error": "#E65251",
   "@color-bi-color-toast-normal": "#2C60DB",
-  "@color-bi-color-toast-text": "#000A19"
+  "@color-bi-color-toast-text": "#000A19",
+  "@color-bi-background-header-background": "rgba(9, 30, 64, 0.9)",
+  "@color-bi-background-header-background-theme-dark": "rgba(255, 255, 255, 0.9)"
 }