You do a bad job of showing it off though
It's a loadout menu that's basically the Half Life Model Viewer where you can rotate, zoom and pan around the character model and you can also change the direction of the lighting by holding Ctrl and dragging while holding in the left mouse button
And it also adds in those buttons to see the RED and BLU team skins, although it may not work with certain items painted with team colors like the Pyromancer's Mask, which will be painted the RED team color instead of the BLU team color when viewing the BLU team skins