Hey, 

I've just answered a similar question. Check it out: https://www.outsystems.com/forums/discussion/80386/how-to-change-color-of-icon-widget-using-color-selection-through-combo-box/

Cheers

Hello

You can refer to this, and check @Jozy Sohail, solution it was really nice way of doing it

https://www.outsystems.com/forums/discussion/80390/how-to-change-color-of-an-icon/

I hope this helps

Thanks

Hello Vaishali,

  You should trying the following steps :

1.Bind  the Color Entities with your Combobox widgets . 

2.Take a Local Variables for Hold the ComboxBox Value.

3.Bind the icon with Container and Add the Extended Properties.

4. 

add Code in the Value fields :

   "Color:"+<Local Variable>

5.Refresh the Icon container with OnChange the Combobox.

I hope this will help you.

Thanks & Regards 

Navneet Sharma