Review styles #4
Description
Styles have been reworked to be slightly less cumbersome than the original C++ version, but it's not perfect:
- StyleCollection is a container for node, connection, and view styles
- Can be loaded from JSON files, Python dictionaries, or just user-tweaked Style classes
- Styles are passed in as follows:
- Scene takes in a collection; uses the connection and view styles
- NodeDataModel takes in a collection; uses the node style