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So I've got the AskUbuntu chatroom (I'm just using this as an example, I've got other webapps that I've got the same issue with) saved as a "Application Shortcut" in Chromium, and the icon is really (And I mean really) low resolution. Example:

enter image description here

The top one is the default icon that's used for the Application Shortcut, the bottom is the AskUbuntu lens - so my question is, how can I use the icon that's used for the AskUbuntu lens.

enter image description here

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up vote 4 down vote accepted

With daily chromium builds and recent BAMF you can (if you look closer to that screenshot, you can see an example with my site and high-res icon). But in the current state of chromium you need to do some hacking to make it support this easily:

  • Make chromium generate a .desktop file for the application Menu too (if you don't want you to create one by scratch).
  • Get your chromium app window WM_CLASS with xprop | grep WM_CLASS | awk '{print $4}' (if it's just "Chromium Browser" or something similar you need to update chromium).
  • Edit that .desktop file (located into ~/.local/share/applications) with gedit or any other text editor; the file should contain:

    StartupWMClass=$APP_WM_CLASS_Found_on_step_2
    Icon=~/your/icon/file/name/or/path
    

    i.e. (for an app pointing to http://mail.google.com with google_mail.png in ~/.local/share/icons):

    StartupWMClass=mail.google.com
    Icon=google_mail.png
    
  • Restart bamfdaemon or unity at all; now when you'll run an application with that WM_CLASS the settings defined in the desktop file you've just edited will be used; icon included ;)

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Been trying with no luck. :l Using Chromium nightly, and also using a Up-to-date Unity install. :( – James Apr 4 '11 at 0:50
    
@James Gifford: the currently bamfdemon package available in natty has not updated yet. You need to compile it from bzr to get this working. – Treviño Apr 4 '11 at 9:43
1  
@James, now bamfdaemon package in natty should be updated. Give it a try again! ;) – Treviño Apr 6 '11 at 17:49
    
the xprop trick doesn't work. It just returns "google-chrome" . Update of course doesn't fix it. – Joshua Robison May 3 at 5:33

The easiest way for me was to install Alacarte (free from the Software Center) and edit the icon from there. It looks like an application to edit regular GNOME 2/GNOME Classic icons, but it works for Unity Launcher icons as well. The Chrome webapps are under "Chrome Applications", at least in my machine.

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