[mariusmg]

If their plan is to make their app crossplatform (Windows,OSX,Linux) and be very versatile with the UI customization , then maybe writing a small/focused specifically for your needs UI crossplatform toolkit is not such a bad idea (after all this is what Sublime Text is doing as well)

But the HW accelerated brag is pointeless. Even if they manage to squeeze some extra performance over native toolkits, that is not necessarely going to matter in the grand scheme of things. Drawing the UI is never the bottlneck in a text editor...

[doodlesdev]

   > Drawing the UI is never the bottlneck in a text editor... 

Unless you're using a webview, which is... unfortunately the case for some of the popular code editors available. Sad times we live in.