Fork of Raspi2png with support for retropie and controller buttons.

Run in a terminal: retro2png / Press the keys "r+2+p" in order
The resulting image will be saved to ~/Pictures/ 

or,

Do the controller shortcut "Mode/PS+DPAD_UP"
Go to the Github to find out how to configure custom shortcuts for your controller at https://github.com/Vegz78/retro2png#configuring-the-gamepad-and-keyboard-hotkeys.