A true DIY-Diva like Danica is a go-getter. So after choosing her colors from the Boysen App, she moves on to buy those cans of paints from the Boysen Mix and Match Station, that you can find in select hardware stores, home depots or paint centers. Check which outlet is closest to you here.
Buy all sundries you need in the same place to get those colors on your walls in a jiffy. Why wait, right?
The ombre wall Danica is making here needs more time, and different colors of paint (same hue but different tones). If you want something simple, just paint your wall one color, like what most people do. Jazz it up a bit by having one accent wall, which you paint in a different color.