fix: #219. (#285)

public/color.less

@@ -5311,10 +5311,17 @@ form .ant-upload {
 .ant-menu-item-selected {
   color: @primary-color;
 }
+.ant-menu-submenu-selected {
+  color: @primary-color;
+}
 .ant-menu-item-selected > a,
 .ant-menu-item-selected > a:hover {
   color: @primary-color;
 }
+.ant-menu-submenu-selected > a,
+.ant-menu-submenu-selected > a:hover {
+  color: @primary-color;
+}
 .ant-menu:not(.ant-menu-horizontal) .ant-menu-item-selected {
   background-color: color(~`colorPalette("@{primary-color}", 1)`);
 }
@@ -5412,6 +5419,9 @@ form .ant-upload {
 .ant-menu-horizontal > .ant-menu-item-selected > a {
   color: @primary-color;
 }
+.ant-menu-horizontal > .ant-menu-submenu-selected > a {
+  color: @primary-color;
+}
 .ant-menu-vertical .ant-menu-item:after,
 .ant-menu-vertical-left .ant-menu-item:after,
 .ant-menu-vertical-right .ant-menu-item:after,