yes. we are cleaning the component's css due to the request to have a "plain" skin. Cleaning means removing the hard-coded parameters such as font-specific and color-specific ones that used to override the "global" setting previously.
The "plain" skin feature is in development right now. (It is scheduled on 3.1.0 - the next richFaces release). So, if you dislike some particular behavior causes by this task, send screenshots and description what you dislike and we will investigate it.
You can create a jira issue and attach screenshots there.