…and how do I change back to something readable?
The image doesn’t tell the whole truth, but fonts in the framed areas are almost unreadable.
I remember having this problem when I first got my Mac two years ago, but can’t remember how I fixed it. Now, all of a sudden the unreadable fonts reappeared, afaik I haven’t changed any settings. One problem is that I don’t even know what settings does have an affect on this.
Would appreciate your assistance.