There are a few ways to change the color of a wall in Photoshop. The first way is to use the color picker. To use the color picker, select the color you want to change and then click on the picker button. The second way is to use the hue and saturation slider. To use the hue and saturation slider, select the hue you want to change and then click on the slider button. The third way is to use the black and white filter. To use the black and white filter, select the filter icon and then click on it.
