Hi

Latest Pharo VM + image (from year 2017, middle of January) changed the way how main window is managed and created (without any announcement).

Something is really messed up, because I can not create an OpenGL context.

OpenGL context created with default framebuffer:

If I create a headless context than screen just freezes until I resize (after resize it recreates context making it current).

Also, window is a black (or sometimes white) when launching pharo until I click.

It definitely looks like Pharo window plays with OpenGL, probably it tries to render morphic in a GL texture and then display it with acceleration: scaled pharo world became sharper on retina and strange lines after dragged window are in the past. Also, rendering performance on retina is dramatically improved.

All those improvements are great, but please make GL context current (glXMakeCurrent)��every frame. Thanks!