UITYPE FrameStrata

FrameStrata is a string which can take following values:
 * "PARENT"
 * "BACKGROUND"
 * "LOW"
 * "MEDIUM"
 * "HIGH"
 * "DIALOG"
 * "FULLSCREEN"
 * "FULLSCREEN_DIALOG"
 * "TOOLTIP"

These stratas are given in order from lowest to highest; except for "PARENT". Value "PARENT" is relative and indicates that you want to put your frame into the same strata as your frame's parent.