Configuration for the height of the private message area?

[CarolineS]

Hello all!

I'm wondering if there's a configuration for the height of the private message area. The window in which the messages scroll is very short, which is particularly annoying when you have had a lot of back-and-forth in the conversation.

The height of the window seems to be added straight into the HTML as an inline style (see screenshot) so I'm not sure how to override w/ CSS. Hoping there is a configuration I'm missing!

Thanks!