Developing a WordPress plugin is hard work, and by the time you’re done, the little details can sometimes be overlooked, like the appearance of the plugin’s icon in the Dashboard. I have used plenty of plugins in my time, and quite a few had pixelated icons or icons that just didn’t seem to look right overall. By the way, have you noticed that the default Dashboard icons are not colored until you hover or click on them? Yeah, now try to ignore the few plugins you have installed with constantly colored icons.
To help new developers with their plugin icons, Matthias Kretschmann has created a handy template for WordPress admin icons with tons of tips. Now, no more excuses, get some good looking icons into your next plugin update.