update

assets/shaders/2d-solid.fragment.glsl

@@ -1,10 +1,8 @@
 #version 330 core
 out vec4 frag_color;
 
-uniform vec3 color;
-
-in vec2 uv;
+in vec4 fragment_color;
 
 void main() {
-    frag_color = vec4(color, 0.0);
+    frag_color = fragment_color;
 };