System: Ubuntu 17.10 Gnome When opening git-gui from a directory which is a repository, minimize and maximize buttons are showing and functional in git-gui. However, if I open git-gui in a non-repo directory, git-gui opens a dialog where I can "Create New Repository", "Clone Existing Repository", etc. When a repository is opened from this dialog, the git-gui window does not have minimize and maximize buttons visible. Steps to reproduce: 1. Open git-gui in a non-repository directory 2. Click "Open Existing Repository" 3. Click "Browse" and select an existing repository directory 4. The repository is opened with git-gui, but without minimize/maximize buttons visible