One way to change background color in Zoho CRM

One way to change background color in Zoho CRM

I too was frustrated by the inability to change the background color (requested feature for quite a few years).
I found a plug-in (firefox for me) to allow by-site color changes to foregrounds and backgrounds.
I think it works via on-the-fly CSS alterations.

Seems to work!

https://addons.mozilla.org/en-US/firefox/addon/color-that-site/

Dave