how can I add filter by color attribute that uses color squares control type in uptown theme, and this to be shown for every prooduct like shown in point 1 in this link
https://www.nop-templates.com/new-uptown-theme-for-nopcommerce?\utm_source=nopcommerce&utm_medium=forum&utm_content=nop+uptown+responsive+theme&utm_campaign=commercial+announcements
note that I'm working on V3.9 and using admin portal only.