Adobe Flash Professional CC 2014 v.13.0 - Manual (Page 252)

Radial gradient controls
A. Center point B. Width C. Rotation D. Size E. Focal point.
3. Reshape the gradient or fill in any of the following ways:
To reposition the center point of the gradient or bitmap fill, drag the center point.
To change the width of the gradient or bitmap fill, drag the square handle on the side of the bounding box. (This option resizes only the
fill, not the object containing the fill.)
To change the height of the gradient or bitmap fill, drag the square handle at the bottom of the bounding box.
To rotate the gradient or bitmap fill, drag the circular rotation handle at the corner. You can also drag the lowest handle on the bounding
circle of a circular gradient or fill.
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