Sets the list of directories where the this looks for style scheme files.
If path is null, the search path is reset to default.
Since GtkSourceView 5.16 this function will allow you to provide paths in the form of "resource:///" URIs to embedded `GResource`s. They must contain the path of a directory within the `GResource`.
| this | |
| path |
a null-terminated array of strings or null. |