diff --git a/src/renderers/svg.renderer.js b/src/renderers/svg.renderer.js
index 0f8943a..ce3fe4e 100644
--- a/src/renderers/svg.renderer.js
+++ b/src/renderers/svg.renderer.js
@@ -1,21 +1,6 @@
 // SVG Layout System
 // src/renderers/svg.renderer.js
 
-export function getColors() {
-  return {
-    background: '#0f172a',
-    cardBg: '#111827',
-    border: '#1f2937',
-
-    primaryText: '#f9fafb',
-    secondaryText: '#d1d5db',
-    mutedText: '#9ca3af',
-
-    success: '#22c55e',
-    warning: '#f59e0b',
-    danger: '#ef4444',
-  };
-}
 import darkTheme from '../themes/dark.theme.js';
 import lightTheme from '../themes/light.theme.js';
 import draculaTheme from '../themes/dracula.theme.js';
diff --git a/src/services/github.service.js b/src/services/github.service.js
index 8da3201..6be307e 100644
--- a/src/services/github.service.js
+++ b/src/services/github.service.js
@@ -136,7 +136,8 @@ async function fetchAvatarDataUri(avatarUrl) {
   }
 
   // Use GitHub CDN to request 96×96 image (keeps response small)
-  const resizedUrl = `${avatarUrl}&s=96`;
+  const separator = avatarUrl.includes('?') ? '&' : '?';
+  const resizedUrl = `${avatarUrl}${separator}s=96`;
   const AVATAR_TIMEOUT_MS = 2000;
   const MAX_SIZE_BYTES = 100 * 1024; // 100 KB safety limit