Kotcrab

For what it's worth it's not necessary to port the Xdelta to Javascript. It's possible to compile the library directly into web assembly with Emscripten and it works pretty nicely,...

Sorry, I won't be making a PR. Adding this is somewhat tricky since you need to figure how to include compiling native code into your build process. Also my approach...

Web demo is using pretty old version so there are differences. There is `setIconSpacing` method for `Tree` but it doesn't seem to have any effect when added.

Good idea, I have one concern though. What if they are multiple file extensions added to single rule? I think in that case chooser should display suggestion popup with possible...

@raeleus I've added this feature. When wrong extensions is typed or there is no extensions then first extension from type filter rule will be used. If that file already exist...

Standard thumbnails are already supported, see https://github.com/kotcrab/vis-ui-contrib/wiki/Adding-thumbnails-to-VisUI-FileChooser. This isn't Firefox feature. Firefox is using native OS file chooser. In case of Windows 7, chooser doesn't have this feature enabled by...

Showing additional file details is actually pretty good benefit since current view modes doesn't support it. Also since it only requires to load 1 image, it should work without need...

@WickedShell added async file listing, I'd be grateful if you could test it and tell me how it works

@WickedShell I pushed more IO work to the background thread so the hitch should be less noticeable now. Time spent on UI is nothing compared to time spent on IO...

The whole scroll focus management of scene2d is done in Windows-like way where you have to click to something to move focus to it and to be honest I don't...