# Description

* This MR fixes the `VisualizationMarkers` class to use the
`SpawnerCfg`. This makes it consistent with how assets are spawned and
allows more variations.
* The markers also support instanceable meshes. This is done by
disabling their instancing (as PointInstancer does not support
pre-instanced assets) and removing any rigid body APIs from the asset.

Fixes #144 

## Type of change

- Bug fix (non-breaking change which fixes an issue)
- New feature (non-breaking change which adds functionality)
- Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- This change requires a documentation update

## Screenshots

https://github.com/isaac-orbit/orbit/assets/12863862/9d1b095b-99ee-4759-ba30-6175cc3b7d78

## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./orbit.sh --format`
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file