These are monochrome tray icons for qtSixA, the PS3 Sixaxis Joystick Manager from falktx. Instead of the blue circular icon, these are done for the Ubuntu 10.04+ monochrome Ambience (dark) theme. Just download, then in terminal type:
gksudo nautilus /usr/share/qtsixa/icons
Backup old icons if you wish, then copy/overwrite the two icons in this zip file to this folder. Restart qtSixA, and you should see the icon in monochrome.