I prefer the old school windows classic with antialiasing turned off. After upgrading to Parallels 15, parallels is adding a blur to everything in coherence mode. This wasn't happening before If I'm not using coherence ("windowed"?), it's fine. When I switch to coherence, it's exactly the same size, just blurry. Windowed (left) vs. Coherence (right) Coherence is also now adding a black border to all windows, maybe related? This wasn't here before.