Like most older programmers, I have some astigmatism - not even that bad, apparently.

(A majority of adults in Europe and Asia also have it.)

One of the side-effects is that light on dark text is harder to read. And now a lot of people seem to use light grey on dark grey, which I can barely read at all, and more, use images of their program instead of text, so tools that rewrite webpages for better contrast can't help.

But mentioning this in a comment thread often gets a wave of abuse. I avoid the temptation to say, "If you're lucky, one day you'll be old like me."

If you want people over 40 to read your writing, please figure out a way to give us a "light mode"! "Today you, tomorrow me."