I've been having several problems with Themes in 2013 with respect to missing images and resources between environments. They seem to use a theme GUID in paths which isn't the same across environments.
The below CSS reference loads in Dev, but when I deploy my branding solution to Production, it goes missing. Why? This is not CSS I have created or referenced in any Master Page or Page.
How can I ensure all Theme resources are getting loaded no matter the environment it is deployed to?
I could copy the classes from control15-*****.themedcss to my custom Style.css. but that isn't a great solution