Suppose that for RTF output you want to make numbers on procedure steps and substeps bold, and give them a color different from the text; for example, RGB 42-96-248. To do this, in local_d2rtf_formats.ini you would modify the inline format used in the numbering formats for steps and substeps.
These are the format definitions in system d2rtf_formats.ini:
[StepNumbered] based=Numbered1 xref=StepXref
[StepNumberedFirst] based=Numbered1First xref=StepXref
Look at the format on which they are based:
[Numbered1] based=Body margin left=0.25in text indent=-0.25in margin top=2pt margin bottom=2pt tabs=0.25in number=List1Num xref=NumXref
You see that the number format is List1Num. That is defined (in system d2rtf_subformats.ini) as:
[List1Num] stream = List1Stream counter = 1 form = <counter1/>.<tab/>
You need to override the form value. Add a section for the inline format in local_d2rtf_formats.ini, specifying a different number format; for example:
[StepNumbered] number=MyList1Num
and define that number format in local_d2rtf_subformats.ini:
[MyList1Num] based=List1Num form=<BlueBold><counter1/>.<tab/>
[BlueBold] color=rgb(42,96,148) based=Bold
Now the numbers on steps and substeps will be bold and blue in RTF output.