diff --git a/static/js/markdown.js b/static/js/markdown.js
index 9d9b189..0d8b97d 100644
--- a/static/js/markdown.js
+++ b/static/js/markdown.js
@@ -54,13 +54,21 @@ const svgChangeTheme = (mode) => {
 
     const treshold = 128;
 
+    const style = "filter: ";
+    const dim = "brightness(0.8) contrast(1.2)";
+
     if (averageGrayscale < treshold && mode === Mode.Dark) {
-      item.style = "filter: invert(1);";
+      item.style = style + dim + " invert(1);";
       continue;
     }
 
     if (averageGrayscale > treshold && mode === Mode.Light) {
-      item.style = "filter: invert(1);";
+      item.style = style + "invert(1);";
+      continue;
+    }
+
+    if (mode === Mode.Dark) {
+      item.style = style + `${dim};`;
       continue;
     }