more shader things that needs multiplatform investigation

src/shaders/gl32shaperenderer.frag

@@ -0,0 +1,13 @@
+#version 150
+
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+in vec4 v_col;
+
+out vec4 fragColor;
+
+void main() {
+    fragColor = v_col;
+}