Here is a picture of my equation in the card first, and then in the Browse menu:
Here is a close up of the two:
From my understanding, I think this might be because of the difference in the anti-aliasing method used. The first one is subpixel rendering and the second one is grayscale anti-aliasing. Is it possible to have grayscale anti-aliasing for MathJax in my cards too, not just in the Browse menu? (As I think it looks better)
I have tried all the video driver options in Preferences, and also matching the Fields > Editing font to the one in my card’s CSS, but it doesn’t seem to work to change the anti-aliasing method.