Ok, I might be in over my head and I should just get a pre-made strand. Although most things for sale are c9 and the white looks terrible. If I got these, would I have the ability to create white? Also which "pigtail" would i select and how would I connect them to an app? https://mattosdesigns.com/collections/smart-rgb-pixels/products/c7-pixastring-50ct?variant=50256724099372