Also added a Color3 alias

src/linalg/vec.h

@@ -25,4 +25,5 @@ struct Vec3 {  // TODO: Maybe make this into a class
     __host__ __device__ Vec3 normalize() const { double len = sqrt(x * x + y * y + z * z); return Vec3(x / len, y / len, z / len); }
 };
 
-typedef Vec3 Point3;
+typedef Vec3 Point3;
+typedef Vec3 Color3;