So, I finally get my first productivity app ready to publish and realize that I have ignored this whole launcher icon thing. I figured I would use some stock icon and be done with it. It isn't that simple. At Google Play, they want a hi res 512x512 icon along with the standard lpdi, mpdi and hpdi icons. I downloaded Paint.net, a free image editing tool to make a 512x512 icon, saved it to an icon folder and then just reduced the density to the required formats for the rest of the icons and sent them to the folder. That way I only make one big easy to see and easy to edit icon. Icon creation isn't my thing, but it has to be done. That or you pay for a custom icon. Hope this helps any first time app publishers.