How can I change the icon for Jupiter?

Solution 1:

Jupiter uses icons from /usr/share/pixmaps/ directory. I've looked through the source code of "Jupiter" and I've found that icon names are hard-coded in application:

def update_icon(self):
    m = self.jupiter.get_current_cpu_mode()

    if m == 'high':
        if loaded_indicator:
            self.ind.set_icon('bolt1')
        else:
            self.tray.set_from_icon_name('bolt1')
    elif m == 'powersave':
        if loaded_indicator:
            self.ind.set_icon('bolt4')
        else:
            self.tray.set_from_icon_name('bolt4')
    else:
        if loaded_indicator:
            self.ind.set_icon('bolt2')
        else:
            self.tray.set_from_icon_name('bolt2')

So you can replace the following icons with what you like:

/usr/share/pixmaps/bolt1.png 
/usr/share/pixmaps/bolt2.png 
/usr/share/pixmaps/bolt3.png  
/usr/share/pixmaps/bolt4.png

Surely you can change source code of "jupiter" :)

Solution 2:

I just created 3 icons by inverting the colors. Just extract the files in the archive to:

/usr/share/pixmaps/

You need Superuser access to do this and you can download the files here.