the first three values expresses the color it self and the last value expresses the opacity of the color and ranges from ( 0 which means transparent to 1 ).
If all you need to change is the transparency of the color then just modify the last value. if you want a completely different color then change the whole thing. and remember you can use whatever format you like not just the rgba() one I use.
All the colors values are . If you already know what CSS is then just skip this part. If, on the other hand, you have no idea what is CSS, then all you need to know is that CSS is markup language that is used to style web-pages and Anki pages too.
CSS colors are a way of telling Anki (or any browser) what color should your element be. there're a few formats you can use to express a color for example: CadetBlue , #5F9EA0 , rgb(95, 158, 160) are all valid formats to express this color .
This addon uses library. So, to change any of the default statistics widgets iconsyou'll need to get the icon name from and replace the existing icon name with the one you chose.