Global variable list for a site


I have this requirement where I want to add the global variable which can control the colors of the website for me.
I don’t want to add this in each document or component in CMS but at the site level so that i can use this to toggle the scheme for the website.
For example if i choose blue I can toggle all the main colors of the components to blue.
Preferably the list to be added at the global level and I can select the value from the list and that value I can use in the code (html etc) to change the CSS.
Something like the property hst:parameternames but at the hst:sites level.

Any suggestions on this would be much appreciated.


I think you are looking for channel configuration parameters

Thanks, thats exactly what i was looking for.
Thanks a million.