Using Google fonts in this website, some uppercase letters are too light(feint) compared to the lowercase. See the text here:
https://katherinesolomon.com/farm-animals/
The problem seems to affect narrow uppercase letters more than wide letters. System fonts (like arial) don't show this problem.
Right now the site is using the Google font "Dosis". I've tried substituting other Google sans-serif fonts but that does not fix the problem; the other choices showed the same problem. I've tried substituting different font weights but that does not help either.
This seems to happen regardless of browser or device.
Can anyone figure out the problem and a solution?