Coloured Punctuation and Annotation

[Michael Everson]

> On 5 Apr 2017, at 23:16, Asmus Freytag <asmusf at ix.netcom.com> wrote:
> 
> Do you have any examples of plain text that is rendered with parts of characters having white (opaque) background?
> 
> I'm not aware of any

There are certainly MSS (in many languages) where some punctuation made of dots have some of the dots red and some black. 

Michael Everson