For some strange reason, DropBox icon does not appear in SysTry on OpenSuSE 13.2. I couldn't find a solution or a workaround, so... I designed my own application.
Here it is:
https://www.dropbox.com/sh/if0g7xwgcksdow5/AACREupcxQh_1pYy7JYHwIRDa?dl=0
In Lazarus/FPC, of course.
OK, it's not a complete app: it just reads the status of the Dropbox an changes the color of the SysTry icon, but that's good enough for me
