id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
20404	Use theme customizer instead of thickbox theme preview	koopersmith	koopersmith	The now old-school thickbox theme previewer is still used on the theme install/update screens. We should use the new customizer instead and completely deprecate theme-preview.js.	task (blessed)	closed	normal	3.4	Administration	3.4	normal	fixed