Add a picture in background of conditionnal formating rule

Hello everybody

Sorry if this point have been resolved in other ticket, but i didn't seen it.

I work with lumira 1.28.2

It is possible to add a picture on the background of a conditionnal formating rule as in webi?

For example I want that if my value is positive, it displays an up green arrow; and dow red arrow in the orther case

Actually in lumira, the only option, is to modify the backgroung with color and text

If not, is there an extension which don this type of conditionnal rule on a crosstab?

thanks in advance for your help