Some changes to how style changes, particularly those tied to data sources, trigger events:

• Enable Event Emission for Data-Bound Styles: Allow events to be emitted when styles even if a style is bound to a data source. This will enable real-time UI updates as the underlying data changes.
• Emit Events on Data Source Value Changes: When a style's value changes due to an update in its bound data source (e.g., em.Datasource.get('ds').setRecord()), an event like em.emit(change:style:STYLE_NAME) should be emitted. This provides a clear signal that a specific style has been updated.
• Fix Event Emission for Redundant Data Bindings: An event should still be emitted even when binding a style to a data source with a value that is identical to its previous static value. For example, if cmp.getStyle('width') currently returns '100px' and you then set cmp.setStyle({width: {type: 'data-variable', path: 'some_path.to.100px'}}) (assuming the data variable also resolves to '100px'), an event should still be triggered to indicate the change in binding type, even if the visual outcome is the same.
• Fix Listening to Data Source Changes After Project Load: Updating values had some bugs if the data source or record was added after the dynamic value was added to components.