Add opacity support to Renderable elements
Add opacity support to Renderable elements: a task in LegoFlow-SWE (Harbor dataset). Symptom: There is currently no way to make renderable elements semi‑transparent. No opacity property exists, so all components (boxes, text, etc.) are rendered fully opaque. Attempting to pass an opacity option in…
The task
**Symptom:** There is currently no way to make renderable elements semi‑transparent. No `opacity` property exists, so all components (boxes, text, etc.) are rendered fully opaque. Attempting to pass an `opacity` option in a constructor is either ignored or causes an error, and there is no setter to change…
Part of Lego-X/LegoFlow-SWE.