yes

modules/wallpaper-engine/shaders/composelayer.frag

@@ -0,0 +1,14 @@
+
+varying vec2 v_TexCoord;
+varying vec3 v_ScreenCoord;
+
+uniform sampler2D g_Texture0; // {"hidden":true}
+
+void main() {
+	vec2 texCoord = v_ScreenCoord.xy / v_ScreenCoord.z * vec2(0.5, 0.5) + 0.5;
+	gl_FragColor = texSample2D(g_Texture0, texCoord);
+	
+#if CLEARALPHA == 1
+	gl_FragColor.a = 0;
+#endif
+}