Suggestion for new OpenType registered feature

[Woksjddj]

Please register a new feature for the double-barred variant of dollar sign (sometimes called “cifrão”). This variant is preferred for many historic currencies and also for the Cape Verdian escudo . I know one could use one of cv00-cv99 but this is something that should be consistent across fonts.

Suggestion:

dbds - double barred dollar sign sbds - single barred dollar sign (for fonts where double barred is default)

[tiroj]

I wonder if this is generalisable to other currency symbols? The sterling symbol is historically encountered with double bar, while the yen symbol is sometimes seen with a single bar when used for the Chinese yuan.

[PeterCon]

Something generalized to other currency symbols might make more sense than something specific to one character.

I'd like to see more feedback with indications of broader support.