Congratulations on the release! It looks very interesting. Does the GUI library embed a web-view, or does it use native controls? What's you estimate of when it will be available for Android and iOS?
The GUI library renders everything, and the result looks very similar to the native widgets:
https://raw.githubusercontent.com/vlang/ui/c2f802a137b5171da...
We are going to support native widgets, for example TextBox will be native due to accessibility and support for Chinese/Japanese/Korean/R2L input.
However things like text rendering will always be handled by the V graphics library, since GDI+ is just way too slow (calculating text bounds is ~10 times slower than in V), and Apple's drawing API is not very nice to use, and it's also 2-3 times slower at rendering text.
Does V's text library support the kinds of shaping and nested bidirectional layout needed to render Arabic text? I've heard that's a cause of a lot of complexity and slowness in text rendering, so stripping it out would be an easy performance win for people like me who can't read Arabic anyway.
https://www.youtube.com/watch?v=fIijYm1MfmI&feature=youtu.be
The UI library will support mobile asap, since it'll receive lots of attention now that 0.2 is out, and we now have 2 people contributing to it.