Glad you we found solution
If you will find yourself in a situation where you will have to "pick color" instead of transforming layer here is the script that picks top-left pixel color and sets it as background color sample:
[CODE=javascript]var myDoc = app.activeDocument;
var docWidth = myDoc.width;
var docHeight = myDoc.height;
var xPos = 0;
var yPos = 0;
app.activeDocument.colorSamplers.removeAll();
var target = [UnitValue(0) , UnitValue(0)];
var sample = app.activeDocument.colorSamplers.add(target);
var Color = sample.color;
var R = Math.ceil(Color.rgb.red);
var G = Math.ceil(Color.rgb.green);
var B = Math.ceil(Color.rgb.blue);
app.activeDocument.colorSamplers.removeAll();
var color = app.backgroundColor;
color.rgb.red = R;
color.rgb.green = G;
color.rgb.blue = B;
app.backgroundColor = color;[/CODE]
just paste it in the notepad and save as file with .jsx extension