Description: add ARGB8888 in GetColorType

IssueNo: https://gitee.com/openharmony/graphic_ui/issues/I6AZ8E?from=project-issue
Feature or Bugfix: Bugfix
Binary Source:No
Signed-off-by: Nlancer <haoshuo@huawei.com>

interfaces/kits/font/ui_font.h

@@ -210,6 +210,8 @@ public:
                 return A4;
             case FONT_WEIGHT_8:
                 return A8;
+            case FONT_WEIGHT_32:
+                return ARGB8888;
             default:
                 return UNKNOWN;
         }