Add project files

src/ui_background.gdshader

@@ -0,0 +1,8 @@
+shader_type canvas_item;
+
+uniform sampler2D SCREEN_TEXTURE: hint_screen_texture, repeat_disable, filter_linear_mipmap_anisotropic;
+
+void fragment() {
+	COLOR.rgb = clamp(textureLod(SCREEN_TEXTURE, SCREEN_UV, 10.0).rgb, 0.05, 0.7);
+	COLOR.a = 1.0;
+}