It turns out that the customizer preview has a copy of the settings just like the customizer panel (parent frame), but if you change the setting in the preview window, it does not sync those changes to the settings in the parent frame. So when changing settings within preview they should propagate up to the parent customizer iframe settings. This will enable inline widget controls inside of the preivew.
It turns out that the customizer preview has a copy of the settings just like the customizer panel (parent frame), but if you change the setting in the preview window, it does not sync those changes to the settings in the parent frame. So when changing settings within preview they should propagate up to the parent customizer iframe settings. This will enable inline widget controls inside of the preivew.
Relates to #17.