   setup: ->
   draw: ->
 
+  mouseDown: ->
+  mouseUp: ->
+
 
   ###
     2D Drawing API

    @g.fillRect x, y, w, h  if isFillEnabled
    @g.strokeRect x, y, w, h  if isStrokeEnabled


module.exports =
  Sketch: Sketch
      # Fillstyle / Grey
      when 1
        arg = args[0]

        # argument is a fillstyle
        if typeof arg == "string"
          arg

        # assumes object is a fk.Color
        else if arg instanceof Color
          "rgba(#{arg.r * 255}, #{arg.g * 255}, #{arg.b * 255}, #{arg.a})"

        # argument is a greyscale value 0-255
        else
