I don't want to use RadScheduler skins as embedded resources. I've been able disable those using EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins="false".
However, I haven't been able to disable the css for the calendar inside the RadScheduler. How do I do this?
You can use this help article to access the embedded calendar in the RadScheduler. After finding the calendar object you can set the EnableEmbeddedBaseStylesheet and EnableEmbeddedSkins to the calendar.