The application allows you to paint individual walls in the desired color.
In this tutorial we will look at this feature.
Step 1: Click on the add modules icon  in the bottom right corner.
Step 2: From the menu we go to "Walls, Floor" .
Step 3: Then we add the wall .
Step 4: Select the inserted wall  and click on the edit icon .
Next we edit the dimensions of the wall  (the Depth setting we select is 1) and then choose the color you want , .
Step 5: Position our wall where we want it.
You can paint the walls in different colors this way.