diff --git a/chrome/button_effect_icon_glow.css b/chrome/button_effect_icon_glow.css
index f7618a3..3c85d90 100644
--- a/chrome/button_effect_icon_glow.css
+++ b/chrome/button_effect_icon_glow.css
@@ -3,7 +3,12 @@ See the above repository for updates as well as full license text. */
 
 /* Replace the button background-colors with a glow effect */
 /* Edit the color choices how you see fit */
-
+:root{
+  --uc-icon-glow-primary: cyan;
+  --uc-icon-glow-secondary: cadetblue;
+  --uc-icon-glow-hover-primary: red;
+  --uc-icon-glow-hover-secondary: yellow;
+}
 
 /* Make backgrounds transparent */
 .close-icon,
@@ -34,14 +39,14 @@ toolbarbutton#scrollbutton-down{
 toolbar .toolbarbutton-1:not([disabled]):hover .toolbarbutton-icon,
 #TabsToolbar toolbarbutton:not([disabled]):hover .toolbarbutton-icon,
 toolbar #downloads-button:hover #downloads-indicator-anchor,
-#identity-box:not(.no-hover):hover,
+.identity-box-button:hover,
 #tracking-protection-icon:hover,
 .findbar-textbox~toolbarbutton:not([disabled]):hover,
 toolbarbutton.scrollbutton-up:not([disabled]):hover,
 toolbarbutton.scrollbutton-down:not([disabled]):hover,
 toolbarbutton#scrollbutton-up:not([disabled]):hover,
 toolbarbutton#scrollbutton-down:not([disabled]):hover{ 
-  filter: brightness(2) drop-shadow(0 0 2px cyan) drop-shadow(0 0 1px cyan)
+  filter: drop-shadow(0 0 2px var(--uc-icon-glow-secondary)) drop-shadow(0 0 1px var(--uc-icon-glow-primary))
 }
 
 /* Active states and close window button hover state */
@@ -57,12 +62,12 @@ toolbar toolbarbutton:not([disabled])[open] .toolbarbutton-icon,
 #TabsToolbar toolbarbutton:not([disabled]):active .toolbarbutton-icon,
 toolbar #downloads-button:active #downloads-indicator-anchor,
 toolbar #downloads-button[open] #downloads-indicator-anchor,
-#identity-box:not([disabled]):active,
+.identity-box-button:active,
 #tracking-protection-icon-container[open] #tracking-protection-icon,
 .findbar-textbox~toolbarbutton:not([disabled]):active,
 toolbarbutton.scrollbutton-up:active,
 toolbarbutton.scrollbutton-down:active,
 toolbarbutton#scrollbutton-up:active,
 toolbarbutton#scrollbutton-down:active{ 
-  filter: brightness(2) drop-shadow(0 0 2px red) drop-shadow(0 0 1px yellow)
-}
+  filter: drop-shadow(0 0 2px var(--uc-icon-glow-hover-secondary)) drop-shadow(0 0 1px var(--uc-icon-glow-hover-primary))
+}
\ No newline at end of file