message: Set colorbuffer clear color to fully transparent
  This changes the colorbuffer's "background" (or clear-) color from white to fully transparent. I think this is the better default behaviour.
diff: @@ -263,7 +263,7 @@ public:
  void clear_buffers()
  {
  colorbuffer = eos::core::image::constant(viewport_height, viewport_width,
  - eos::core::Pixel<std::uint8_t, 4>(255, 255, 255, 255));
  + eos::core::Pixel<std::uint8_t, 4>(255, 255, 255, 0));
  depthbuffer =
  eos::core::image::constant(viewport_height, viewport_width, std::numeric_limits<double>::max());
  };
  