diff --git a/misc/gif-tests/low-colors-no-transparency.piskel b/misc/gif-tests/low-colors-no-transparency.piskel
new file mode 100644
index 0000000..456651a
--- /dev/null
+++ b/misc/gif-tests/low-colors-no-transparency.piskel
@@ -0,0 +1 @@
+{"modelVersion":2,"piskel":{"name":"low-colors-no-transparency","description":"","fps":12,"height":60,"width":60,"layers":["{\"name\":\"Layer 1\",\"frameCount\":2,\"base64PNG\":\"data:image/png;base64,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\"}"],"expanded":false}}
\ No newline at end of file
diff --git a/misc/gif-tests/low-colors-with-transparency.piskel b/misc/gif-tests/low-colors-with-transparency.piskel
new file mode 100644
index 0000000..f935a19
--- /dev/null
+++ b/misc/gif-tests/low-colors-with-transparency.piskel
@@ -0,0 +1 @@
+{"modelVersion":2,"piskel":{"name":"low-colors-with-transparency","description":"","fps":12,"height":60,"width":60,"layers":["{\"name\":\"Layer 1\",\"frameCount\":2,\"base64PNG\":\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHgAAAA8CAYAAACtrX6oAAABOUlEQVR4nO3bQWoDQQxEUR3Ix8lpAj5MTmovQsNgEmwYdZVG+h9q3+KtO4KIiIiIiIiIiIhoUN9fj7dr1O3n/ng39xvP9wlqI+xPUHtgn4G9IPQZ2OtBZ+JeADkTtzbyDtjC0Dtg60IrcAshK3DrICtxCyArcf3IDlwjsgPXiwxwY2AnrgHZiatHdsOKkd2wemQ3KsAbc4OKkd2gemQ3JsAAZ+bG1AK7IcXIbkg9shsRYIAzcyMCDHBybkSAAc7MjQgwwMm5EQEGODM3oh44oibyxtyQWtwIgAts570AF9jOe39zg4pwV25QLW4EwO2BI2ogC3PDanFXQ3BXs3AjAG4PHMHPhta4qyG4q1m4qyG4q1m4x5rDvjYH9tgQ3NUs3GPNYV+bA/tXTVH/awYqERERERERERFRVk8BxgukicHldgAAAABJRU5ErkJggg==\"}"],"expanded":false}}
\ No newline at end of file
diff --git a/misc/gif-tests/too-many-colors-no-transparency.piskel b/misc/gif-tests/too-many-colors-no-transparency.piskel
new file mode 100644
index 0000000..431c0c8
--- /dev/null
+++ b/misc/gif-tests/too-many-colors-no-transparency.piskel
@@ -0,0 +1 @@
+{"modelVersion":2,"piskel":{"name":"Imported piskel","description":"","fps":12,"height":60,"width":60,"layers":["{\"name\":\"Layer 1\",\"frameCount\":2,\"base64PNG\":\"data:image/png;base64,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\"}"],"expanded":false}}
\ No newline at end of file
diff --git a/misc/gif-tests/too-many-colors-with-transparency.piskel b/misc/gif-tests/too-many-colors-with-transparency.piskel
new file mode 100644
index 0000000..8df45e2
--- /dev/null
+++ b/misc/gif-tests/too-many-colors-with-transparency.piskel
@@ -0,0 +1 @@
+{"modelVersion":2,"piskel":{"name":"Imported piskel","description":"","fps":12,"height":60,"width":60,"layers":["{\"name\":\"Layer 2\",\"frameCount\":2,\"base64PNG\":\"data:image/png;base64,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\"}"],"expanded":false}}
\ No newline at end of file
diff --git a/src/js/controller/settings/exportimage/GifExportController.js b/src/js/controller/settings/exportimage/GifExportController.js
index 16bb046..9ca27fe 100644
--- a/src/js/controller/settings/exportimage/GifExportController.js
+++ b/src/js/controller/settings/exportimage/GifExportController.js
@@ -6,6 +6,7 @@
   var MAX_EXPORT_ZOOM = 20;
   var DEFAULT_EXPORT_ZOOM = 10;
   var MAGIC_PINK = '#FF00FF';
+  var WHITE = '#FFFFFF';
 
   ns.GifExportController = function (piskelController) {
     this.piskelController = piskelController;
@@ -105,10 +106,16 @@
     var currentColors = pskl.app.currentColorsService.getCurrentColors();
 
     var preserveColors = currentColors.length < MAX_GIF_COLORS;
-    var transparentColor = this.getTransparentColor(currentColors);
 
+    var transparentColor, transparent;
     // transparency only supported if preserveColors is true, see Issue #357
-    var transparent = preserveColors ? parseInt(transparentColor.substring(1), 16) : null;
+    if (preserveColors) {
+      transparentColor = this.getTransparentColor(currentColors);
+      transparent = parseInt(transparentColor.substring(1), 16);
+    } else {
+      transparentColor = WHITE;
+      transparent = null;
+    }
 
     var gif = new window.GIF({
       workers: 5,
@@ -122,6 +129,9 @@
     for (var i = 0 ; i < this.piskelController.getFrameCount() ; i++) {
       var frame = this.piskelController.getFrameAt(i);
       var canvasRenderer = new pskl.rendering.CanvasRenderer(frame, zoom);
+      if (preserveColors) {
+
+      }
       canvasRenderer.drawTransparentAs(transparentColor);
       var canvas = canvasRenderer.render();
       gif.addFrame(canvas.getContext('2d'), {