Tired of the same old images when you load into the DCS main menu? Here's how you can add your own custom pics: Link.
I added this pic for my main menu.
How to change your DCS Menu Screen Pic
Moderator: RLG MGMT Team
Re: How to change your DCS Menu Screen Pic
Also, you may not know this but you can change which 3D models are loaded in the background of the main menu. You can even make it load a hangar full of different airplanes, or even load a different hangar or use a Carrier instead. There's a Lua file you can edit, and you can create your own custom scene. You can even specify animation of parts or set parts as desired. At one time, I had the Harrier as my hangar model, with all the red protective covers over the sensors and intakes (yes, that is modeled on the Harrier).