If you want to get it the exact same way Unity does, look at the code in unity-shared/BGHash.cpp in the Unity source. It uses the _GNOME_BACKGROUND_REPRESENTATIVE_COLORS X window property from the root window, which presumably gets updated by Gnome when the wallpaper changes.
I've attached a quick Python script which outputs that property in CSS hex format, which looks like the format you use. On 24 May 2012 19:12, Matt Richardson <m.richardson.1...@hotmail.co.uk>wrote: > OK so I have created a proof of concept using ImageMagick to get the > average colour and bash and sed to then replace the specific values in the > gtk.css, gtk-widgets.css, gtkrc and metacity-theme-1.xml files. > > You can download it > <http://ubuntuone.com/0CXq4H6R10xHgMaDFMejbP>here<http://ubuntuone.com/6oslxzNUw5GOGCq4Wzqhup> > > 1) Extract the files to ~/.themes > 2) Copy the "Chameleon Script.sh" file to somewhere more easy to access > 3) You will need to use MyUnity (or similar) to change the theme to > 'Chameleon', since the 'Appearances' settings panel doesn't display it. > 4) Run "Chameleon Script.sh" > 5) Most applications will simply need closing and reopening to update. > 6) I'm not entirely sure why but programs with workaround css files > (including nautilus and unity) won't update until you log out and back in. > Until you do this Nautilus and the top panel (as well as menus thereof) > will not change. > > ImageMagick came installed by default I think (I don't recall installing > it), but if it's not a default tool then you can install it from the > software center. In the long run, this script would hopefully be > incorporated into Unity > > Known issues: > 1) Does not update automatically when the wallpaper is changed. You have > to run the script each time you change wallpaper. > 2) Nautilus, Unity and potentially some others do not update until log > out/in > 3) Colour matching is not quite the same as Unity. Most of the time the > theme produces a closer match to the wallpaper than Unity (IMO) but it can > be affected by a small presence of a very bright colour. It would also be > better if it could match Unity perfectly to provide seamless aesthetics. > 4) Cannot handle xml files, as used by wallpapers that change during the > day. > 5) The currently highlighted button (not in toolbars) displays dark text > on a dark background (with some wallpapers). I can't find the value which > changes that at the moment. > > Hopefully, were this integrated into the same code that updates Unity's > chameleonic elements, issues 1 to 4 would all be solved. Issue 5 is just a > matter of time, but I decided to see what people think before continuing. > > Feedback would be appreciated > Matt > > > > On 22/05/12 12:09, Matt Richardson wrote: > > I would really like to see a chameleonic theme land in 12.10. > Not a transparent theme. Instead simply the ambiance theme (light to dark > vertical gradient) but where the base colour is taken as the average colour > of the wallpaper. > I also think this would help the top-left corner issue, as the launcher, > panel and window would blend a lot better. > Also, this wouldn't prevent the user from selecting non-chameleonic > themes, as some people would prefer the contrast. > > Thoughts? > Matt > > > -- > Mailing list: https://launchpad.net/~unity-design > Post to : unity-design@lists.launchpad.net > Unsubscribe : https://launchpad.net/~unity-design > More help : https://help.launchpad.net/ListHelp > >
get_representative_color.py
Description: Binary data
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