[Dev Task]: Mark incompatible arc inscriptions

### Task Description

Somehow show if a variable type mismatches the incoming ColorSet, e.g., by making the arc inscription red, or with an icon.

### Related Code

_No response_

### Context

- [ ] Polish
- [ ] Refactoring
- [x] Filling in functionality
- [ ] Other

### Estimated Scope

Medium (small implementation or refactor)

### Additional Notes

_No response_