The same verb "back" is used for both opening a confirmation dialog, and closing the same dialog without finishing the action in the mod dialog. This is a bit confusing, since the same is used with two opposite meanings in the same context. Perhaps something like "discard changes" would be better for the first button.
Steps to reproduce:
1. Open mods
2. Install a mod
3. Press back gui button in mod window
4. Press back gui button in popup window
[1.1.35] Confusing wording in mod dialog
Re: [1.1.35] Confusing wording in mod dialog
This is not a bug.