diff --git a/js/_addColorButton.js b/js/_addColorButton.js
index 7cb5f3f..17871db 100644
--- a/js/_addColorButton.js
+++ b/js/_addColorButton.js
@@ -39,7 +39,7 @@ on('click', 'add-color-button', function(){
     while (colorIsUnique == false);
 
     //remove current color selection
-    document.querySelector('#colors-menu li.selected').classList.remove('selected');
+    document.querySelector('#colors-menu li.selected')?.classList.remove('selected');
 
     //add new color and make it selected
     var addedColor = addColor(newColor);
diff --git a/js/_clickedColor.js b/js/_clickedColor.js
index 1f852c7..9f0a7d5 100644
--- a/js/_clickedColor.js
+++ b/js/_clickedColor.js
@@ -4,8 +4,7 @@ function clickedColor (e){
     //left clicked color
     if (e.which == 1) {
         // remove current color selection
-        var selectedColor = document.querySelector('#colors-menu li.selected');
-        if (selectedColor) selectedColor.classList.remove('selected');
+        document.querySelector('#colors-menu li.selected')?.classList.remove('selected');
 
         //set current color
         for (let i=1; i<layers.length - nAppLayers; i++) {
diff --git a/js/_createColorPalette.js b/js/_createColorPalette.js
index a8cf769..c357088 100644
--- a/js/_createColorPalette.js
+++ b/js/_createColorPalette.js
@@ -32,8 +32,7 @@ function createColorPalette(paletteColors, deletePreviousPalette = true) {
         if (newColorHex.r + newColorHex.g + newColorHex.b < darkestColorHex.r + darkestColorHex.g + darkestColorHex.b) {
 
             //remove current color selection
-            var selectedColor = document.querySelector('#colors-menu li.selected');
-            if (selectedColor) selectedColor.classList.remove('selected');
+            document.querySelector('#colors-menu li.selected')?.classList.remove('selected');
 
             //set as current color
             newColorElement.classList.add('selected');
diff --git a/js/_mouseEvents.js b/js/_mouseEvents.js
index 478dce3..e36686a 100644
--- a/js/_mouseEvents.js
+++ b/js/_mouseEvents.js
@@ -105,8 +105,7 @@ window.addEventListener("mouseup", function (mouseEvent) {
 	      //if picked color matches this color
 	      if (newColor == colors[i].jscolor.toString()) {
 	        //remove current color selection
-	        var selectedColor = document.querySelector("#colors-menu li.selected")
-	        if (selectedColor) selectedColor.classList.remove("selected");
+	        document.querySelector("#colors-menu li.selected")?.classList.remove("selected");
 
 	      	//set current color