I haven't finished writing my plugin, but meanwhile, I have found an alternative solution using xcalib.
Here is the script that I am using now: https://gist.github.com/hrj/6561271 -- You received this bug notification because you are a member of DX Packages, which is subscribed to compiz-plugins-main in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1093565 Title: Missing compiz color filter plugin since quantal Status in “compiz-plugins-main” package in Ubuntu: Triaged Bug description: Up until Precise, the compiz-plugins-main contained many plugins: http://packages.ubuntu.com/oneiric-updates/i386/compiz-plugins-main/filelist The one I am particularly interested in is the color-filter plugin. Since Quantal however, the plugin is not present: http://packages.ubuntu.com/quantal-updates/i386/compiz-plugins-main/filelist This is an important plugin for the following reasons: 1. Some people have a medical condtion that makes them sensitive to certain colors. 2. For anyone who needs to work at night, or work in a low light condition, it is often useful to filter green and blue light. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz-plugins-main/+bug/1093565/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp

