How are paintStyleIds created?

[tank666]

The value after the comma is specified only for styles that are imported from the library.

@tank666

Notice how the style ids look like:

@tank666

Local Style Id:

"S:1a2b…n9,"

Style Id from the library:

"S:1a2b…n9,1:0"

To use a style from the library, you definitely need to import it into a file. This way it will get a unique id in the file (a unique id is assigned automatically. That is, you cannot know "S:1a2b…n9,unique-id" in advance). If it’s already imported, you can get the style id from the node, or from pluginData/clientStorage if you’ve saved it there.