I just tested this in Ubuntu 10.04 Beta and it's still the same issue (surprise surprise) as with every other version of ubuntu.
Trying the first example I gave before doesn't work. Trying the second example I gave before does work (the same as every other version of ubuntu).
I've attempted to look at fixing this issue myself however gnome panel source code documentation is a mess.
The README file tells me to look at a non-existant INSTALL file. The GnomePanel web page links to a lot of non-existent web pages and has no helpful information at all.
I just tested this in Ubuntu 10.04 Beta and it's still the same issue (surprise surprise) as with every other version of ubuntu.
Trying the first example I gave before doesn't work. Trying the second example I gave before does work (the same as every other version of ubuntu).
I've attempted to look at fixing this issue myself however gnome panel source code documentation is a mess.
The README file tells me to look at a non-existant INSTALL file. The GnomePanel web page links to a lot of non-existent web pages and has no helpful information at all.