[PD] Highlight modified abstraction instances with red

[Georg Holzmann]

Hallo!

>> i would vote for a 'turn subpatch into an abstraction' button though.
>>
>> and of course the long awaited feature to embed abstractions in
>> abstractions.
> 
> what does this mean? something like libs embed external objects?

think about maybe like functions in a python script or c program or 
whatever.
You can reuse the function in the whole file, but the function is also 
defined in the same file.

So in PD this would mean that you can define an e-abs ("embedded 
abstraction" ;) somewhere, which is only valid for the scope of the 
current patch, but you can use this e-abs in the whole patch (or 
abstraction) without coding it multiple times ...

LG
Georg