diff --git a/src/theme.js b/src/theme.js
index b7fbe40df4..ab5974f207 100644
--- a/src/theme.js
+++ b/src/theme.js
@@ -148,7 +148,7 @@ function setCustomThemeVars(customTheme) {
     function setCSSVariable(name, hexColor, doPct = true) {
         style.setProperty(`--${name}`, hexColor);
         if (doPct) {
-            // uses #rrggbbaa to define the color with alpha values at 0% and 50%
+            // uses #rrggbbaa to define the color with alpha values at 0%, 15% and 50%
             style.setProperty(`--${name}-0pct`, hexColor + "00");
             style.setProperty(`--${name}-15pct`, hexColor + "26");
             style.setProperty(`--${name}-50pct`, hexColor + "7F");