Get color on MouseDown

Phaser 3
1

Hi,

I want to pick the color (RGB) values on ClickDown over Sprite2.
Both sprite has same dimensions.

But Color is always Null:

	var containerX = 210;
    var containerY = 490;
    this.my_container = this.add.container(containerX,containerY);
	
	this.sprite1 = this.add.sprite(0,0,'sprite1');
    this.sprite1.setOrigin(0);
	this.my_container.add(this.sprite1);
	
	this.sprite2     = this.add.sprite(0,0,'sprite2_mask');
	this.sprite2.setOrigin(0);
	this.sprite2.setInteractive();
	this.sprite2.alpha = 0.01;
	this.sprite2.on('pointerdown',function (pointer){
		
		var color = this.textures.getPixel(pointer.x , pointer.y , 'sprite2_mask');
		console.log('PointerDown', color );
	},this);
2

:wave:

this.sprite2.on(
  "pointerdown",
  function (pointer, localX, localY) {
    var color = this.textures.getPixel(localX, localY, "sprite2_mask");
  },
  this
);