$_Parameters of Symbols

$_Parameters of Symbols

Hello everybody,
I'm trying to manipulate the $_parameters of a Symbol from project bibliothek.
it works like this
...set_DynProperties(@"$_Hintergrund\BackColor", "8000001B");
By executing the Makro I get an error, that there is an invalid Value : $_Hintergrund\BackColor
in the screen, that I try to manipulate.
instead of that the value ...set_DynProperties(@"$_Hintergrund\AlphaBackColor", "50"); works without problems.
is there a special way to manipulate a Backcolor of an object?!

This is a migrated post! Originally posted on 08.06.2013 by user ilia_romeikov. Please be aware that information can be outdated.