Can we please get an option to disable the new window transparency in mahjong?

The 5.0 update seemed to add transparency to the Doman Mahjong game window when it's clicked off of, much like how the map window functions. I'm not sure what possibly could have been in mind for this since there obviously isn't anything else you'd need to see behind it like with the map, so I almost wonder if it's just a bug or something.

Anyways, it's incredibly annoying having my game window go transparent while I'm typing in chat between turns, could we please get an option to disable this like we can with the map window? All the other new features added to mahjong in 5.0 are fantastic, but this is a pretty major issue.