I have done some customization to my desktop but I am really stumped on trying to figure out how to make my own mouse cursor by taking a png and editing it and then making it an x11 file.

I have gotten all the files I need and made them all, in fact the cursor (its a star trek logo) shows up in the gnome tools advanced setting as star-trek-cursor, but when I go into the command line to use sudo update-alternatives --config x-cursor-theme, it does not show up in the list anywhere to set it.

I have tried making a .theme file where all the other X11 cursors are located, but no luck so I figured I would see if anyone else out there has had luck with this.