yes

modules/wallpaper-engine/effects/localcontrast/preview/materials/effectpreview.json

@@ -0,0 +1,13 @@
+{
+	"passes" : 
+	[
+		{
+			"blending" : "translucent",
+			"cullmode" : "nocull",
+			"depthtest" : "disabled",
+			"depthwrite" : "disabled",
+			"shader" : "genericimage2",
+			"textures" : [ "effectpreview" ]
+		}
+	]
+}

modules/wallpaper-engine/effects/localcontrast/preview/materials/effectpreview.tex-json

@@ -0,0 +1,6 @@
+{
+	"clampuvs" : true,
+	"format" : "rgba8888",
+	"nomip" : true,
+	"nonpoweroftwo" : true
+}

modules/wallpaper-engine/effects/localcontrast/preview/materials/effects/localcontrast_combine.json

@@ -0,0 +1,9 @@
+{
+	"passes": [{
+		"shader": "effects/localcontrast_combine",
+		"blending": "normal",
+		"depthtest": "disabled",
+		"depthwrite": "disabled",
+		"cullmode": "nocull"
+	}]
+}

modules/wallpaper-engine/effects/localcontrast/preview/materials/effects/localcontrast_downsample4.json

@@ -0,0 +1,9 @@
+{
+	"passes": [{
+		"shader": "effects/localcontrast_downsample4",
+		"blending": "normal",
+		"depthtest": "disabled",
+		"depthwrite": "disabled",
+		"cullmode": "nocull"
+	}]
+}

modules/wallpaper-engine/effects/localcontrast/preview/materials/effects/localcontrast_gaussian_x.json

@@ -0,0 +1,9 @@
+{
+	"passes": [{
+		"shader": "effects/localcontrast_gaussian",
+		"blending": "normal",
+		"depthtest": "disabled",
+		"depthwrite": "disabled",
+		"cullmode": "nocull"
+	}]
+}

modules/wallpaper-engine/effects/localcontrast/preview/materials/effects/localcontrast_gaussian_y.json

@@ -0,0 +1,12 @@
+{
+	"passes": [{
+		"shader": "effects/localcontrast_gaussian",
+		"blending": "normal",
+		"depthtest": "disabled",
+		"depthwrite": "disabled",
+		"cullmode": "nocull",
+		"combos": {
+			"VERTICAL" : 1
+		}
+	}]
+}