First adjustments to the Entity System to make it work with different types

shader/repeat_texture.gdshader

@@ -2,8 +2,14 @@ shader_type canvas_item;
 
 uniform vec2 tiling_scale = vec2(5.0, 5.0);
 uniform sampler2D noise : repeat_enable;
+varying vec4 modulate;
+
+void vertex() {
+	modulate = COLOR;
+}
 
 void fragment() {
     vec2 uv = vec2(UV.x * tiling_scale.x, UV.y * tiling_scale.y); // Change 10.0 to control tiling scale
     COLOR = texture(TEXTURE, fract(uv));
+	COLOR = COLOR * modulate;
 }