[PD] Highlight modified abstraction instances with red

[IOhannes m zmoelnig]

padawan12 at obiwannabe.co.uk wrote:
>> what do you gain from turning abstractions into
>> subpatches?? 
> 
> You gain the advantage of being able to distribute
> a Pd patch built from many disparate abstractions as
> a single file.
> 

this advantage you gain from being able to embed abstractions in
abstractions, while at the same time you still have the features of
abstractions (namely: abstraction)

apart from that, tar allows you to distribute your multi-file Pd patch
as a single file too.

mfga.sdr
IOhannes