 		options.clip ?= false
 		options.width ?= 300
 		options.height ?= 10
-				
+
 		@knob = new Layer
 			backgroundColor: "#fff"
 			shadowY: 1, shadowBlur: 3


		super options

		@knobSize = options.knobSize or 30
		@knob.superLayer = @fill.superLayer = @


		@knob.borderRadius = "50%"

		@_updateFrame()
		@_updateKnob()
		@_updateFill()

		@on("change:size", @_updateFrame)
