In reply to Winko Ljizz.

@Winko: You should be able to achieve these (slightly idiosyncratic, if you don't mind me saying!) appearances using the dialog accessible from the Chord Symbols page of Engraving Options to set up your own individual defaults for each kind of chord symbol. It would be difficult to add options for whether or not the root note should be shown in upper or lowercase according to the quality of the chord: for example, what makes a diminished chord show a lowercase root note? Is it the lowered third, or something else?