Update src/lib/auth.js

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: RohitKushvaha01

src/lib/auth.js

@@ -130,7 +130,7 @@ class AuthService {
 			"#4CAF50",
 			"#FF9800",
 		];
-		ctx.fillStyle = colors[Math.floor(Math.random() * colors.length)];
+    ctx.fillStyle = colors[name.split('').reduce((acc, char) => acc + char.charCodeAt(0), 0) % colors.length];
 		ctx.fillRect(0, 0, 100, 100);
 
 		ctx.fillStyle = "#ffffff";