- Removed implicit pip definitions and IPips interface.
New decoration traits have been added to render them.
Pip types are no longer hardcoded in OpenRA.Game.
- Decoration rendering is now managed by SelectionDecorations(Base),
which allows us to remove assumptions about the selection box
geometry from the decoration traits.
- RenderNameTag has been replaced by WithNameTagDecoration, which is
an otherwise normal decoration trait.
- Unify the configuration and reduce duplication between traits.
- Removed hardcoded references to specific selection box renderables.
- Remove legacy cruft.
