Export to itch.io help.

Hello. I have just started posting my games on Itch.io and have come across something that I need help with. (I browser embed by games). Is there any way and can change the color scheme of the console on the web page? For example I am making a game, and I want the color scheme of the itch.io page for that game to be dark grey/green. When I embed the “simulator” the light blue of the simulator sticks out and doesn’t feel like it belongs there. I want the simulator to have a similar color scheme. Is this possible? Also when embedding the game, is it possible to have the rectangular/longer version of the console instead of the squarish version?