Google in an update for developers has revealed that it's taking a hardline stance on including Android 4.0 interface elements. Although HTC, Samsung, and others can still have a default custom interface and theme, the code behind the stock theme, Holo, now has to sit on the device if a hardware maker wants to have access to Android Market. The policy will make sure that hardware makers can update faster by keeping their theme separate from the OS and provide a consistent look for apps without having to continually adapt code.