TTB_LTR
TTB_LTR: "topToBottom-leftToRight"
TTB_RTL
TTB_RTL: "topToBottom-rightToLeft"
BTT_LTR
BTT_LTR: "bottomToTop-leftToRight"
BTT_RTL
BTT_RTL: "bottomToTop-rightToLeft"
LTR_TTB
LTR_TTB: "leftToRight-topToBottom"
LTR_BTT
LTR_BTT: "leftToRight-bottomToTop"
RTL_TTB
RTL_TTB: "rightToLeft-topToBottom"
RTL_BTT
RTL_BTT: "rightToLeft-bottomToTop"