Currently, there’s this white square that displays beside the game name on the game cards when a user is playing a game.
It is visible in dark mode, but you can click it in light mode as well. When you click it, it leads to the game, just as the name of the game does as well.
Based on what I remember trying to make my own dark theme, this is the ::after HTML element. I believe it shows the truncation characters (the 3 dots), but it can be used for anything. I am not sure why Roblox assigns a background though.
