blue - specify the blue color component of the color scheme.
alpha - specify the alpha color component of the color scheme.
+ font - a subgroup to specify a specific font type
+ name - the name of the font (excluding it's .txf extension)
+ size - size of the font
+ slant - the slant of the font (in pixels)
+
legend - the text legend to display in the object.
label - the text label to display near the object.