@mehmethand you can combine laf + images :
const knobImage = Content.createLocalLookAndFeel(); knobImage.loadImage("{PROJECT_FOLDER}image.png", "img"); knobImage.registerFunction("drawRotarySlider", function(g, obj) { var a = obj.area; var offset = 100.0; // size of 1 image in px g.drawImage("img", a, 0, Engine.doubleToString(obj.value*100.0*offset, 2)); });Although it only works with linear values. If you use non-linear knob modes, it gets messed up.