Make the name of the current Composed Look a property of the Web object
Currently there is no simple way to pro grammatically get/set the current Composed Look for a site. The Composed Looks list available from the Site Settings page shows all the looks available, but the only way to determine which one of them is the current one is to tediously compare every item in the list to the one with the name "current", which is inefficient and error prone because if there is a background image as part of the Composed Look, the value in the background image field is changed when the look is chosen by the user so the records do not match exactly. It should be very simple to add a property to the web object which is updated with the new name whenever a user changes the composed look.
Thanks for your feedback! Although we appreciate your time and effort to give us this feedback, it’s not something we’re planning to do right now. This would absolutely help on the programmatic handling of the site configuration, but we are not currently looking to invest in this area of the branding elements.