diff --git a/apps/client/src/stylesheets/theme-next/base.css b/apps/client/src/stylesheets/theme-next/base.css
index 80e529823..9b9ffc887 100644
--- a/apps/client/src/stylesheets/theme-next/base.css
+++ b/apps/client/src/stylesheets/theme-next/base.css
@@ -91,10 +91,10 @@
      * Note: the tree background may vary when background effects are enabled, so it is recommended
      * to maintain a higher contrast margin than on the usual note tree solid background. */
 
-    /* The maximum lightness for the custom color in the light theme (%): */
+    /* The maximum perceptual lightness for the custom color in the light theme (%): */
     --tree-item-light-theme-max-color-lightness: 60;
     
-    /* The minimum lightness for the custom color in the dark theme (%): */
+    /* The minimum perceptual lightness for the custom color in the dark theme (%): */
     --tree-item-dark-theme-min-color-lightness: 60;
 }