textSize([pointSize])
Returns the current font size in points and sets it if argument pointSize is given.
Type: function
Parameter(s):
- pointSize {Number} Optional:The size in points to set. 
Returns:
- 
    {Number}:
 The current point size. 
Returns the current font size in points and sets it if argument pointSize is given.
Type: function
Parameter(s):
The size in points to set.
Returns:
The current point size.