func PushAttributes() {
	p := attr{text: canvas.textColor, back: canvas.backColor}
	canvas.attrStack = append(canvas.attrStack, p)
}
func PushAttributes() {
	p := attr{text: canvas.textColor, back: canvas.backColor}
	canvas.attrStack = append(canvas.attrStack, p)
}
func PushAttributes ( ) { p := attr { text : canvas . textColor , back : canvas . backColor } canvas . attrStack = append ( canvas . attrStack , p ) }
// PushAttributes saves the current back and fore colors. Useful when used with
// PopAttributes: you can save colors then change them to anything you like and
// as the final step just restore original colors
PushAttributes saves the current back and fore colors . Useful when used with PopAttributes : you can save colors then change them to anything you like and as the final step just restore original colors