Merge pull request #192670 in DEC/fineui from final/11.0 to release/11.0

* commit 'b4cce0b0550700da599b697fbfa439f8de5236c8':
  无JIRA任务 图标key

src/less/lib/font.less

@@ -23,6 +23,7 @@
 
 @font-arrow-left: "e1bc";
 @font-arrow-right: "e1bd";
+@font-arrow-bottom: "e1a4";
 
 @font-up-triangle: "e1c6";
 @font-down-triangle: "e1c9";

src/less/resource/font.less

@@ -66,7 +66,7 @@
 //实心下拉三角
 .font-hover(solid-triangle-left-font, @font-solid-left);
 .font-hover(solid-triangle-top-font, @font-solid-top);
-.font-hover(solid-triangle-bottom-font, @font-solid-bottom);
+.font-hover(solid-triangle-bottom-font, @font-arrow-bottom);
 //实心展开三角
 .font(expander-right-font, @font-solid-right);
 .font(expander-down-font, @font-solid-bottom);