* Quadratic shape
* Dimensions a power of 2
* Maximum size (automatic scaling if exceeded)
* Also: removed simple background

* Increased texture size to 2048x2048
* What about tiling? Is it worth it?

* Twice the size for more details during zoom
* Still not perfect due to object linear mapping

* First rough GUI layout
* Added widget for OpenGL context
* Using dedicated working directories
* Adjusted .gitignore