The picker control allows a color to be selected from a graphic,
for use with effects, themes and transitions that support them.
Using the default values for all attributes above will
non-proportionately scale the graphic specified in the
back attribute to fit the control's
available space, minus a square to the left which displays the currently selected
color and any spacing. The control will be bound to the timeline.selection.forecolor
property, which will be defined if the selection contains items that support this property.
align: the string 'top', 'left' or 'center'
angle: floating point number (degrees)
back: valid URL to a graphic
bind: an object ID, period and property name
border: positive integer (pixels)
bordercolor: six character hex color value
color: six character hex color value
grad: floating point number less than 128
height: integer (pixels) or '*', '**'... (proportional)
hide: an object ID, period and property name followed by a condition and value
spacing: positive integer (pixels)
symbol: a valid SWF URL, followed by an ampersand and class name
width: integer (pixels) or '*', '**'... (proportional)