A background is the image behind the Title and the menu buttons, if you have played other game-modes, you may have seen that the backgrounds are different from certain game-modes, and yours lacks that small little detail.

Here is the hard part about this, making the said background. The said background can be anything you desire it to be, a peice of artwork made in your art program, a small scene in a map for your game-mode, or beeg tity gof gorl. It is reccomended to keep it a screenshot, (or a scene) so lets select one, heres mine as a example:











awesome screenshot from a map for my gamemode, furryesc_virtual. (yes that is the map definer, (and the title, almost) deal with it.) Lets find out how to make this a background.
(Note: The background is pre-made, we are just using it as a example.)So lets get started, so first (tell me if i am wrong) we need to size it down to 1024x640 using our image editor of choice. (for me it is Paint.net. (that is just the title of it, do not go to the url, you will be sent to a paint store)) and save it as a jpg file.

Move it to the backgrounds folder in your game mode's folder, and if you do not have one, make a new folder and title it "backgrounds". What did you expect if the hard part was sizing it down?