func PopAttributes() {
	if len(canvas.attrStack) == 0 {
		return
	}
	a := canvas.attrStack[len(canvas.attrStack)-1]
	canvas.attrStack = canvas.attrStack[:len(canvas.attrStack)-1]
	SetTextColor(a.text)
	SetBackColor(a.back)
}
func PopAttributes() {
	if len(canvas.attrStack) == 0 {
		return
	}
	a := canvas.attrStack[len(canvas.attrStack)-1]
	canvas.attrStack = canvas.attrStack[:len(canvas.attrStack)-1]
	SetTextColor(a.text)
	SetBackColor(a.back)
}
func PopAttributes ( ) { if len ( canvas . attrStack ) == 0 { return } a := canvas . attrStack [ len ( canvas . attrStack ) - 1 ] canvas . attrStack = canvas . attrStack [ : len ( canvas . attrStack ) - 1 ] SetTextColor ( a . text ) SetBackColor ( a . back ) }
// PopAttributes restores saved with PushAttributes colors. Function does
// nothing if there is no saved colors
PopAttributes restores saved with PushAttributes colors . Function does nothing if there is no saved colors