ok i used my code, code given by loopix and wiki's code
my code has nearest results, those 2 both made that tree to strip, except wiki's code made small green dots!!

this is my code and result:
action tree1
{
my.overlay = on;
my.transparent = off;
my.alpha = 100;
}

BUT, its still transparent :/ and the stubs of tree are still cut in peaces too