Good afternoon. I recently bought a unit 2.4 "320x240 ips lcd. It's very convenient, except for a few things: how do I delete characters paint on the background, bathed in color (ie I first paint the background rectangle with the filling, and after that printed on it text in mode "|"), and one more thing: if there is an opportunity to upgrade the module to version 3.0 (as I understand it is possible to set the background color ???). Thank you for convenient display.