Improving styling options

[megagrump]

So my idea to make styling more customizable is through use of 9-sliced images.

Most of the widgets currently use simple rectangles in line and fill mode. If we replaced those with 9-patches, making a new theme would become as simple as drawing an image with the new look, and defining a bunch of rectangles.

If you want to get fancy you can even use a Canvas as the slice source and get animated styles "for free" (as in, no special support is required in the library).

This is, in my opinion, an elegant solution: it makes creating new styles very simple, does not require writing or changing code to create a theme, and it's relatively easy to implement.

It does require a good caching strategy though, because you don't want to recreate a bunch of SpriteBatches in every frame. That's probably the hardest part of the implementation.

[megagrump]

Yo @flamendless did you see this? Any thoughts?

[flamendless]

Oh problem with the mobile version it seems. Now i see it.

Hmmm 9-slice is a good idea for theming. I am all for it.