I'm really new to Blender and learning some basics. I have a very limited knowledge about modifiers and nodes. So is there any way to separate an extrusion from the main object and give it new color material? I already tried the ctrl+P multiple times and it didn't work.
There's this simple building I'm working on. I used extrude to make a door frame for it. But when I want to give the door frame a different color, the whole building changes the color. I used separation or material by selecting and using control P, but still no results.
The funny part is that I made window frames from the very same object and separated it. It works just fine. but the door! I've been searching it for a while and all the answers were like using the ctrl+P or using nodes and modifiers which is really new and confusing for me.
I left some screen shot for better understanding. <3 sorry if the question is repetitive and dumb XD

