diff --git a/Sources/arm/App.hx b/Sources/arm/App.hx
index 784c75ca..be66f57f 100644
--- a/Sources/arm/App.hx
+++ b/Sources/arm/App.hx
@@ -490,6 +490,9 @@ class App extends iron.Trait {
 						else {
 							arm.App.showMessageBox("You are up to date!");
 						}
+						// explorer "https://armorpaint.org/download"
+						// open "https://armorpaint.org/download"
+						// xdg-open "https://armorpaint.org/download"
 					}
 				});
 				#end
diff --git a/Sources/arm/MaterialBuilder.hx b/Sources/arm/MaterialBuilder.hx
index 6fbf887c..a77dbdbe 100644
--- a/Sources/arm/MaterialBuilder.hx
+++ b/Sources/arm/MaterialBuilder.hx
@@ -119,7 +119,7 @@ class MaterialBuilder {
 		frag.add_uniform('float brushOpacity', '_brushOpacity');
 		frag.add_uniform('float brushHardness', '_brushHardness');
 
-		if (UITrait.inst.brushType == 0 || UITrait.inst.brushType == 1 || decal || UITrait.inst.brushType == 8) { // Draw / Erase
+		if (UITrait.inst.brushType == 0 || UITrait.inst.brushType == 1 || decal || UITrait.inst.brushType == 8 || UITrait.inst.brushType == 9) { // Draw / Erase
 			
 			#if (kha_opengl || kha_webgl)
 			frag.write('if (sp.z > textureLod(paintdb, vec2(sp.x, 1.0 - bsp.y), 0).r) { discard; }');
@@ -237,35 +237,74 @@ class MaterialBuilder {
 			}
 		}
 
-		var clone = UITrait.inst.brushType == 8;
-		if (clone) {
+		if (UITrait.inst.brushType == 8 || UITrait.inst.brushType == 9) { // Clone, Blur
+			
 			frag.add_uniform('sampler2D gbuffer2');
 			frag.add_uniform('vec2 gbufferSize', '_gbufferSize');
-			frag.add_uniform('vec2 cloneDelta', '_cloneDelta');
-			#if (kha_opengl || kha_webgl)
-			frag.write('vec2 texCoordInp = texelFetch(gbuffer2, ivec2((sp.x + cloneDelta.x) * gbufferSize.x, (1.0 - (sp.y + cloneDelta.y)) * gbufferSize.y), 0).ba;');
-			#else
-			frag.write('vec2 texCoordInp = texelFetch(gbuffer2, ivec2((sp.x + cloneDelta.x) * gbufferSize.x, (sp.y + cloneDelta.y) * gbufferSize.y), 0).ba;');
-			#end
 			frag.add_uniform('sampler2D texpaint_undo', '_texpaint_undo');
 			frag.add_uniform('sampler2D texpaint_nor_undo', '_texpaint_nor_undo');
 			frag.add_uniform('sampler2D texpaint_pack_undo', '_texpaint_pack_undo');
-			frag.write('vec3 texpaint_pack_sample = textureLod(texpaint_pack_undo, texCoordInp, 0).rgb;');
-			
-			var base = 'textureLod(texpaint_undo, texCoordInp, 0).rgb;';
-			var rough = 'texpaint_pack_sample.g;';
-			var met = 'texpaint_pack_sample.b;';
-			var occ = 'texpaint_pack_sample.r;';
-			var nortan = 'textureLod(texpaint_nor_undo, texCoordInp, 0).rgb;';
-			var height = '0.0';
-			var opac = '1.0';
-			frag.write('vec3 basecol = $base;');
-			frag.write('float roughness = $rough;');
-			frag.write('float metallic = $met;');
-			frag.write('float occlusion = $occ;');
-			frag.write('vec3 nortan = $nortan;');
-			frag.write('float height = $height;');
-			frag.write('float opacity = $opac * brushOpacity;');
+
+			if (UITrait.inst.brushType == 8) { // Clone
+				frag.add_uniform('vec2 cloneDelta', '_cloneDelta');
+				#if (kha_opengl || kha_webgl)
+				frag.write('vec2 texCoordInp = texelFetch(gbuffer2, ivec2((sp.x + cloneDelta.x) * gbufferSize.x, (1.0 - (sp.y + cloneDelta.y)) * gbufferSize.y), 0).ba;');
+				#else
+				frag.write('vec2 texCoordInp = texelFetch(gbuffer2, ivec2((sp.x + cloneDelta.x) * gbufferSize.x, (sp.y + cloneDelta.y) * gbufferSize.y), 0).ba;');
+				#end
+
+				frag.write('vec3 texpaint_pack_sample = textureLod(texpaint_pack_undo, texCoordInp, 0).rgb;');
+				var base = 'textureLod(texpaint_undo, texCoordInp, 0).rgb';
+				var rough = 'texpaint_pack_sample.g';
+				var met = 'texpaint_pack_sample.b';
+				var occ = 'texpaint_pack_sample.r';
+				var nortan = 'textureLod(texpaint_nor_undo, texCoordInp, 0).rgb';
+				var height = '0.0';
+				var opac = '1.0';
+				frag.write('vec3 basecol = $base;');
+				frag.write('float roughness = $rough;');
+				frag.write('float metallic = $met;');
+				frag.write('float occlusion = $occ;');
+				frag.write('vec3 nortan = $nortan;');
+				frag.write('float height = $height;');
+				frag.write('float opacity = $opac * brushOpacity;');
+			}
+			else { // Blur
+				#if (kha_opengl || kha_webgl)
+				frag.write('vec2 texCoordInp = texelFetch(gbuffer2, ivec2(sp.x * gbufferSize.x, (1.0 - sp.y) * gbufferSize.y), 0).ba;');
+				#else
+				frag.write('vec2 texCoordInp = texelFetch(gbuffer2, ivec2(sp.x * gbufferSize.x, sp.y * gbufferSize.y), 0).ba;');
+				#end
+
+				frag.write('vec3 basecol = vec3(0.0, 0.0, 0.0);');
+				frag.write('float roughness = 0.0;');
+				frag.write('float metallic = 0.0;');
+				frag.write('float occlusion = 0.0;');
+				frag.write('vec3 nortan = vec3(0.0, 0.0, 0.0);');
+				frag.write('float height = 1.0;');
+				frag.write('float opacity = 1.0 * brushOpacity;');
+				frag.write('for (int i = -7; i <= 7; i++) {');
+				frag.write('  basecol += textureOffset(texpaint_undo, texCoordInp, ivec2(i, 0)).rgb;');
+				frag.write('  vec3 texpaint_pack_sample = textureOffset(texpaint_pack_undo, texCoordInp, ivec2(i, 0)).rgb;');
+				frag.write('  roughness += texpaint_pack_sample.g;');
+				frag.write('  metallic += texpaint_pack_sample.b;');
+				frag.write('  occlusion += texpaint_pack_sample.r;');
+				frag.write('  nortan += textureOffset(texpaint_nor_undo, texCoordInp, ivec2(i, 0)).rgb;');
+				frag.write('}');
+				frag.write('for (int i = -7; i <= 7; i++) {');
+				frag.write('  basecol += textureOffset(texpaint_undo, texCoordInp, ivec2(0, i)).rgb;');
+				frag.write('  vec3 texpaint_pack_sample = textureOffset(texpaint_pack_undo, texCoordInp, ivec2(0, i)).rgb;');
+				frag.write('  roughness += texpaint_pack_sample.g;');
+				frag.write('  metallic += texpaint_pack_sample.b;');
+				frag.write('  occlusion += texpaint_pack_sample.r;');
+				frag.write('  nortan += textureOffset(texpaint_nor_undo, texCoordInp, ivec2(0, i)).rgb;');
+				frag.write('}');
+				frag.write('basecol /= 30.0;');
+				frag.write('roughness /= 30.0;');
+				frag.write('metallic /= 30.0;');
+				frag.write('occlusion /= 30.0;');
+				frag.write('nortan /= 30.0;');
+			}
 		}
 		else {
 			Cycles.parse_height_as_channel = true;
@@ -706,7 +745,8 @@ class MaterialBuilder {
 
 		var writeTC = (UITrait.inst.brushType == 2 && UITrait.inst.fillTypeHandle.position == 1) || // Face fill
 					   UITrait.inst.brushType == 4 || // Colorid pick
-					   UITrait.inst.brushType == 8; // Clone
+					   UITrait.inst.brushType == 8 || // Clone
+					   UITrait.inst.brushType == 9;   // Blur
 
 		if (writeTC) {
 			frag.write('fragColor[2] = vec4(posa - posb, texCoord.xy);');
diff --git a/Sources/arm/renderpath/RenderPathDeferred.hx b/Sources/arm/renderpath/RenderPathDeferred.hx
index 0109f089..b33899e2 100644
--- a/Sources/arm/renderpath/RenderPathDeferred.hx
+++ b/Sources/arm/renderpath/RenderPathDeferred.hx
@@ -247,7 +247,8 @@ class RenderPathDeferred {
 
 				// Read texcoords from gbuffer
 				var readTC = (UITrait.inst.brushType == 2 && UITrait.inst.fillTypeHandle.position == 1) || // Face fill
-							  UITrait.inst.brushType == 8; // Clone
+							  UITrait.inst.brushType == 8 || // Clone
+							  UITrait.inst.brushType == 9;   // Blur
 				if (readTC) {
 					path.bindTarget("gbuffer2", "gbuffer2");
 				}
diff --git a/Sources/arm/ui/UITrait.hx b/Sources/arm/ui/UITrait.hx
index b7c1a452..a4e1abb2 100644
--- a/Sources/arm/ui/UITrait.hx
+++ b/Sources/arm/ui/UITrait.hx
@@ -510,12 +510,13 @@ class UITrait extends iron.Trait {
 					else if (kb.started("t")) selectTool(6); // Text
 					else if (kb.started("s")) selectTool(7); // Shape
 					else if (kb.started("l")) selectTool(8); // Clone
-					// else if (kb.started("p")) selectTool(8); // Particle
+					else if (kb.started("u")) selectTool(9); // Blur
+					// else if (kb.started("p")) selectTool(10); // Particle
 				}
 
 				// Radius
 				if (!ctrl && !shift) {
-					if (brushType == 0 || brushType == 1 || brushType == 5 || brushType == 6 || brushType == 7) { // Draw, erase, decal, text
+					if (brushType == 0 || brushType == 1 || brushType == 5 || brushType == 6 || brushType == 7 || brushType == 8 || brushType == 9) { // Draw, erase, decal, text, shape, clone, blur
 						if (kb.started("f")) {
 							brushCanLock = true;
 							mouse.lock();
@@ -905,6 +906,13 @@ class UITrait extends iron.Trait {
 				g.color = 0xffffffff;
 			}
 
+			var kb = iron.system.Input.getKeyboard();
+			if (brushType == 8 && !kb.down("alt") && (mouse.down() || pen.down())) { // Clone source cursor
+				g.color = 0x66ffffff;
+				g.drawScaledImage(cursorImg, mx + cloneDeltaX * iron.App.w() - psize / 2, my + cloneDeltaY * iron.App.h() - psize / 2, psize, psize);
+				g.color = 0xffffffff;
+			}
+
 			if (showGrid) {
 				// Separator line
 				var x1 = iron.App.x() + iron.App.w() / 3;
@@ -1108,9 +1116,16 @@ class UITrait extends iron.Trait {
 				ui._x -= 2;
 				ui._y += 2;
 
+				ui._x += 2;
+				if (brushType == 9) ui.rect(-1, -1, img1.width + 2, img1.height + 2, ui.t.HIGHLIGHT_COL, 2);
+				if (ui.image(img9) == State.Started) selectTool(9);
+				if (ui.isHovered) ui.tooltip("Blur (U)");
+				ui._x -= 2;
+				ui._y += 2;
+
 				// ui._x += 2;
-				// if (brushType == 8) ui.rect(-1, -1, img1.width + 2, img1.height + 2, ui.t.HIGHLIGHT_COL, 2);
-				// if (ui.image(img9) == State.Started) selectTool(8);
+				// if (brushType == 10) ui.rect(-1, -1, img1.width + 2, img1.height + 2, ui.t.HIGHLIGHT_COL, 2);
+				// if (ui.image(img11) == State.Started) selectTool(10);
 				// if (ui.isHovered) ui.tooltip("Particle (P)");
 				// ui._x -= 2;
 				// ui._y += 2;