Uwe Sieber's commandline tool RestartUsbPort can list present USB devices:
RestartUsbPort V1.0.3 (Win32) - Restarts a USB Port
Freeware by Uwe Sieber - www.uwe-sieber.de
List of USB ports with a device attached:
Name : Generic USB Hub
DeviceID : USB\VID_8087&PID_0020\5&15BBD570&0&1
Location : Port_#0001.Hub_#...
git-cola seems to come with a tool named "git dag" you might wish to take a look at. You can find some screenshots here, let me pick the two most relevant:
git dag (left) and git cola (right), source: GitCola (click images for larger variants)
The two rawly correspond to gitk (git-dag) and git-gui (git-cola), but have a fresher design. You can ...