How do you find an image center without arcade physics ?
 
	As an example I am using a matrix as exported by inkscape , but elements order looks different.
 
	-45 degrees rotation about (0,0) of a
 
	10 by 10 px image square
 
	es ( can't figure out if correct) :
 
            var tank = this.add.image(-5, 5, 'testImg');
            var ar = [0.70710678,0.70710678,0,-0.70710678,0.70710678,0];//svg inkscape matrix
            var mat = new Phaser.Matrix();
            console.log(tank.getBounds(mat.fromArray(ar)));