Darken the editor when game is embedded and active

[GuyUnger]

When using the embedded mode it is confusing that all shortcuts don't work anymore because it's not communicated that the game is active. A bright border around the game could work, but I think darkening the whole editor would be more clear in communicating that this part of what you're seeing is not active right now and trying to do shortcuts will do anything there

[Castro1709]

Or maybe apply like a modulate color and make it an editor setting. I think unity had that