Fullscreen/span

[kll]

how does that look?

void setup() {
  fullScreen();
  surface.setSize(200, 200); //Change size here
}

void draw() {
  background(0);
  ellipse(mouseX, mouseY, 20, 20);
}

more:

Is setUndecorated() possible?

No, I agree with you, and your first answer - overriding initSurface() - is the way I do this. Depending on the renderer and the OS, fullScreen() can set flags on the window that you don’t want and can cause problems. The slightly longer-winded way you posted first is a safer bet. I only use the OpenGL renderers in PraxisLIVE. Interesting these return the window and not the canvas from getNative() so I override initSurface like (where wHints is my own config object) - protected PSurface ini…