diff --git a/Assets/plugins/dev/converter.js b/Assets/plugins/dev/converter.js
index 9bcdf803..b53102f7 100644
--- a/Assets/plugins/dev/converter.js
+++ b/Assets/plugins/dev/converter.js
@@ -10,18 +10,18 @@ plugin.drawUI = function(ui) {
 			arm.UIFiles.show("arm", false, function(path) {
 				iron.Data.getBlob(path, function(b) {
 					let parsed = iron.ArmPack.decode(b.bytes);
-					let out = arm.Bytes.ofString(arm.Json.stringify(parsed, function(key, value) {
-						if (arm.StdIs(value, Float32Array)) {
+					let out = core.Bytes.ofString(core.Json.stringify(parsed, function(key, value) {
+						if (core.StdIs(value, Float32Array)) {
 							let ar = Array.from(value);
 							ar.unshift(0); // Annotate array type
 							return ar;
 						}
-						else if (arm.StdIs(value, Uint32Array)) {
+						else if (core.StdIs(value, Uint32Array)) {
 							let ar = Array.from(value);
 							ar.unshift(1);
 							return ar;
 						}
-						else if (arm.StdIs(value, Int16Array)) {
+						else if (core.StdIs(value, Int16Array)) {
 							let ar = Array.from(value);
 							ar.unshift(2);
 							return ar;
@@ -35,19 +35,19 @@ plugin.drawUI = function(ui) {
 		if (ui.button(".json to .arm")) {
 			arm.UIFiles.show("json", false, function(path) {
 				iron.Data.getBlob(path, function(b) {
-					let parsed = arm.Json.parse(b.toString());
+					let parsed = core.Json.parse(b.toString());
 					function iterate(d) {
-						for (const n of arm.ReflectFields(d)) {
-							let v = arm.ReflectField(d, n);
-							if (arm.StdIs(v, Array)) {
-								if (arm.StdIs(v[0], Number)) {
+						for (const n of core.ReflectFields(d)) {
+							let v = core.ReflectField(d, n);
+							if (core.StdIs(v, Array)) {
+								if (core.StdIs(v[0], Number)) {
 									arm.Log.trace(n);
 									let ar = null;
 									if (v[0] === 0) ar = new Float32Array(v.length - 1);
 									else if (v[0] === 1) ar = new Uint32Array(v.length - 1);
 									else if (v[0] === 2) ar = new Int16Array(v.length - 1);
 									for (let i = 0; i < v.length - 1; ++i) ar[i] = v[i + 1];
-									arm.ReflectSetField(d, n, ar);
+									core.ReflectSetField(d, n, ar);
 								}
 								else for (const e of v) if (typeof e === 'object') iterate(e);
 							}
diff --git a/Assets/plugins/dev/profiler.js b/Assets/plugins/dev/profiler.js
index 9be7ec98..9b6f7205 100644
--- a/Assets/plugins/dev/profiler.js
+++ b/Assets/plugins/dev/profiler.js
@@ -34,8 +34,8 @@ plugin.drawUI = function(ui) {
 
 let updateGraph = function() {
 	if (graph === null) {
-		graphA = arm.Image.createRenderTarget(280, 33);
-		graphB = arm.Image.createRenderTarget(280, 33);
+		graphA = core.Image.createRenderTarget(280, 33);
+		graphB = core.Image.createRenderTarget(280, 33);
 		graph = graphA;
 	}
 	else graph = graph === graphA ? graphB : graphA;
@@ -48,7 +48,7 @@ let updateGraph = function() {
 
 	let avg = Math.round(frameTimeAvg * 1000);
 	let miss = avg > 16.7 ? (avg - 16.7) / 16.7 : 0.0;
-	g2.set_color(arm.colorFromFloats(miss, 1 - miss, 0, 1.0));
+	g2.set_color(core.colorFromFloats(miss, 1 - miss, 0, 1.0));
 	g2.fillRect(280 - 3, 33 - avg, 3, avg);
 
 	g2.set_color(0xff000000);
@@ -69,6 +69,6 @@ let tick = function(g2) {
 		updateGraph();
 		g2.begin(false);
 	}
-	frameTime = arm.Scheduler.realTime() - lastTime;
-	lastTime = arm.Scheduler.realTime();
+	frameTime = core.Scheduler.realTime() - lastTime;
+	lastTime = core.Scheduler.realTime();
 }
diff --git a/Assets/plugins/hello_node_brush.js b/Assets/plugins/hello_node_brush.js
index 9ae43b88..0b4e4fb5 100644
--- a/Assets/plugins/hello_node_brush.js
+++ b/Assets/plugins/hello_node_brush.js
@@ -47,7 +47,7 @@ arm.NodesBrush.list.push(nodes);
 
 // Brush node
 arm.Brush.customNodes.set(nodeType, function(node, from) {
-	return Math.sin(arm.Scheduler.time() * node.inputs[0].get(0));
+	return Math.sin(core.Scheduler.time() * node.inputs[0].get(0));
 });
 
 // Cleanup
diff --git a/Assets/plugins/import_stl.js b/Assets/plugins/import_stl.js
index 96009d7b..6cf8e9a6 100644
--- a/Assets/plugins/import_stl.js
+++ b/Assets/plugins/import_stl.js
@@ -1,7 +1,7 @@
 
 let import_stl = function(path, done) {
 	iron.Data.getBlob(path, function(b) {
-		let input = new arm.BytesInput(b.bytes);
+		let input = new core.BytesInput(b.bytes);
 		let header = input.read(80);
 		if (header.getString(0, 5) == "solid") {
 			return; // ascii not supported
diff --git a/Assets/plugins/import_svg.js b/Assets/plugins/import_svg.js
index 3cc008f7..bb731ba9 100644
--- a/Assets/plugins/import_svg.js
+++ b/Assets/plugins/import_svg.js
@@ -34,7 +34,7 @@ let import_svg = function(path, done) {
 		let w = a._get_pixels_w();
 		let h = a._get_pixels_h();
 		let pixels = r.buffer.slice(a._get_pixels(), a._get_pixels() + w * h * 4);
-		let image = arm.Image.fromBytes(arm.Bytes.ofData(pixels), w, h);
+		let image = core.Image.fromBytes(core.Bytes.ofData(pixels), w, h);
 		done(image);
 
 		a._destroy();
diff --git a/Assets/plugins/import_tiff.js b/Assets/plugins/import_tiff.js
index 07e19dfa..eea53784 100644
--- a/Assets/plugins/import_tiff.js
+++ b/Assets/plugins/import_tiff.js
@@ -9,7 +9,7 @@ let import_tiff = function(path, done) {
 		let ifds = UTIF.decode(b.bytes.b.bufferValue);
 		UTIF.decodeImage(b.bytes.b.bufferValue, ifds[0]);
 		let rgba = UTIF.toRGBA8(ifds[0]);
-		let image = arm.Image.fromBytes(arm.Bytes.ofData(rgba.buffer), ifds[0].width, ifds[0].height);
+		let image = core.Image.fromBytes(core.Bytes.ofData(rgba.buffer), ifds[0].width, ifds[0].height);
 		done(image);
 	});
 }
diff --git a/Assets/plugins/texsynth.js b/Assets/plugins/texsynth.js
index 668a3567..0b49c7ac 100644
--- a/Assets/plugins/texsynth.js
+++ b/Assets/plugins/texsynth.js
@@ -25,9 +25,9 @@ function texsynthInpaint(tiling) {
 
 	let bytes_img = l.texpaint.getPixels().b.bufferValue;
 	let bytes_mask = l.texpaint_mask != null ? l.texpaint_mask.getPixels().b.bufferValue : new ArrayBuffer(w * h);
-	let bytes_out = new arm.Bytes(new ArrayBuffer(w * h * 4));
+	let bytes_out = new core.Bytes(new ArrayBuffer(w * h * 4));
 	Krom.texsynthInpaint(w, h, bytes_out.b.bufferValue, bytes_img, bytes_mask, tiling);
-	let image = arm.Image.fromBytes(bytes_out, w, h);
+	let image = core.Image.fromBytes(bytes_out, w, h);
 
 	function _next() {
 		arm.Context.layerIsMask = false;
@@ -36,7 +36,7 @@ function texsynthInpaint(tiling) {
 		l.deleteMask();
 		l.texpaint.unload();
 
-		l.texpaint = arm.Image.createRenderTarget(w, h);
+		l.texpaint = core.Image.createRenderTarget(w, h);
 		let g2 = l.texpaint.get_g2();
 		g2.begin(false);
 		g2.drawImage(image, 0, 0);
diff --git a/Sources/arm/Plugin.hx b/Sources/arm/Plugin.hx
index 1b026909..96de10df 100644
--- a/Sources/arm/Plugin.hx
+++ b/Sources/arm/Plugin.hx
@@ -42,6 +42,24 @@ class Plugin {
 	}
 }
 
+@:expose("core")
+class CoreBridge {
+	public static var Json = haxe.Json;
+	public static var ReflectFields = Reflect.fields;
+	public static var ReflectField = Reflect.field;
+	public static var ReflectSetField = Reflect.setField;
+	public static var StdIs = Std.is;
+	public static var Bytes = haxe.io.Bytes;
+	public static var BytesInput = haxe.io.BytesInput;
+	public static var BytesOutput = haxe.io.BytesOutput;
+	public static var Blob = kha.Blob;
+	public static var Image = kha.Image;
+	public static var Scheduler = kha.Scheduler;
+	public static function colorFromFloats(r: Float, g: Float, b: Float, a: Float): kha.Color {
+		return kha.Color.fromFloats(r, g, b, a);
+	}
+}
+
 @:expose("iron")
 class IronBridge {
 	public static var App = iron.App;
@@ -56,16 +74,6 @@ class IronBridge {
 
 @:expose("arm")
 class ArmBridge {
-	public static var Json = haxe.Json;
-	public static var ReflectFields = Reflect.fields;
-	public static var ReflectField = Reflect.field;
-	public static var ReflectSetField = Reflect.setField;
-	public static var StdIs = Std.is;
-	public static var Bytes = haxe.io.Bytes;
-	public static var BytesInput = haxe.io.BytesInput;
-	public static var Blob = kha.Blob;
-	public static var Image = kha.Image;
-	public static var Scheduler = kha.Scheduler;
 	public static var App = arm.App;
 	public static var Config = arm.Config;
 	public static var Context = arm.Context;
@@ -92,14 +100,14 @@ class ArmBridge {
 	public static var RenderUtil = arm.util.RenderUtil;
 	public static var UVUtil = arm.util.UVUtil;
 	public static var ViewportUtil = arm.util.ViewportUtil;
-	public static function colorFromFloats(r: Float, g: Float, b: Float, a: Float): kha.Color {
-		return kha.Color.fromFloats(r, g, b, a);
-	}
+	public static var PngWriter = arm.format.PngWriter;
+	public static var PngTools = arm.format.PngTools;
 }
 
 @:expose("zui")
 class ZuiBridge {
 	public static var Handle = zui.Zui.Handle;
+	public static var Zui = zui.Zui;
 	public static var Ext = zui.Ext;
 }