Font: size with unit and default color
The attached enhancement allows to do the following:
1. specifying minFontSize and maxFontSize with a unit of measurement, i.e.:
minFontSize = 1em
maxFontSize = 3em
2. the fontColor may be set to a null value. This allows not to override the color settings configued through a CSS, for instance:
Although working, the patch just gives the idea. Probably the code might be improved.