imgui (#10)

Co-authored-by: Persson-dev <sim16.prib@gmail.com>
Reviewed-on: #10

app/src/main/java/chess/view/DDDrender/shader/PieceShader.java

@@ -48,7 +48,7 @@ public class PieceShader extends ShaderProgram {
 
 			uniform vec3 modelColor;
 
-			out vec4 out_color;
+			layout(location = 0) out vec4 out_color;
 
 			void main(void){
 				const float shineDamper = 10.0;