diff --git a/framework/core/js/src/common/utils/isDark.ts b/framework/core/js/src/common/utils/isDark.ts
index 03755a8e8..3b4563ee7 100644
--- a/framework/core/js/src/common/utils/isDark.ts
+++ b/framework/core/js/src/common/utils/isDark.ts
@@ -6,16 +6,16 @@
  */
 
 export default function isDark(hexcolor: String) {
-  let hexnumbers = hexcolor.replace("#", "");
+  let hexnumbers = hexcolor.replace('#', '');
 
   if (hexnumbers.length == 3) {
     hexnumbers += hexnumbers;
   }
 
-  const r = parseInt(hexnumbers.substr(0,2),16);
-  const g = parseInt(hexnumbers.substr(2,2),16);
-  const b = parseInt(hexnumbers.substr(4,2),16);
-  const yiq = ((r*299)+(g*587)+(b*114))/1000;
+  const r = parseInt(hexnumbers.substr(0, 2), 16);
+  const g = parseInt(hexnumbers.substr(2, 2), 16);
+  const b = parseInt(hexnumbers.substr(4, 2), 16);
+  const yiq = (r * 299 + g * 587 + b * 114) / 1000;
 
-  return (yiq >= 128) ? false : true;
+  return yiq >= 128 ? false : true;
 }