maybe someone can use it to build nice panels for his ship. (if you develop an add-on.. there is lots of useful stuff for other developers as a nice "sideeffect")
includes several different versions of buttons, and two panel-backrounds. I'll upate this add-on, as the bitmap-list grows
.EDIT: I added another example-svg-file to use with the open source software "inkscape" to show how you could use the bitmaps
greetings, Tom