On a page like https://outreachdashboard.wmflabs.org/courses/Biblioteca_San_Giorgio_di_Pistoia/GLAMSan_Giorgio_Pistoia/articles I have big trouble reading most of the content, because text is in lighter and lighter shades of grey over what feels like a non-white background. Please avoid grey over grey.

Even if it were white, the titles of the pages are not WCAG 2 AAA Compliant under 18 pt size:
https://snook.ca/technical/colour_contrast/colour.html#fg=6A6A6A,bg=FFFFFF