Guess that beats buying a whole new keyboard.

Bought a cheap $40 EMF meter off Amazon a few years back and it went nuts every time my fridge kicked on, so I feel you on the junk thing. Half that gear is built to react to normal house stuff and people just want it to mean something. Save your money and borrow a buddy's stuff first before dropping real cash on any of it.

There's a thing called the APCA contrast method that's way better than the old WCAG checker for this exact problem. I read a NN/g article about how light gray text on white passes the math but still looks dead to real eyes, especially in sunlight. The fix is bumping the text to at least #767676 or darker so it never reads as grayed out. I also screenshot the button at 50% brightness on my oldest phone and glance at it outdoors before calling it done lol.