Overwrites account-specific logo (if set), shown only for that specific game. To add special logo for your game open edit game > configuration > Game logo. In this case event-specific logo is used for this game and account-specific logo is not displayed (if set). Note that if game-specific logo is set, account logo is still shown in the app (if set) on log in screen. Logo image is scaled down to 300 pixels longer side in the app. PNG file format with transparent background looks the best.