prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Improve VTK.js 3D Viewer
  After #406 is merged, we should improve the 3D viewer. Basically, use [this example](https://kitware.github.io/vtk-js/examples/GeometryViewer.html)
  
  Things we should have:
  
  - [x] drop-down menu to change the scalar array
  - [x] Scalar bar
  - [x] Representation style
  - [x] Better background color choice (likely black)
  - [x] Point size slider
  - [x] Support RGB colors
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `example_project/rgd_example/settings.py`
  Content:
  ```
  1 from rgd_testing_utils.settings import *  # noqa
  2 
  3 INSTALLED_APPS += [  # noqa
  4     'rgd_3d',
  5     'rgd_fmv',
  6     'rgd_geometry',
  7     'rgd_imagery',
  8     # Swagger
  9     'drf_yasg',
  10     'django_extensions',
  11 ]
  12 
  13 ROOT_URLCONF = 'rgd_example.urls'
  14 WSGI_APPLICATION = 'rgd_example.wsgi.application'
  15 
  16 
  17 # Swagger
  18 REFETCH_SCHEMA_WITH_AUTH = True
  19 REFETCH_SCHEMA_ON_LOGOUT = True
  20 OPERATIONS_SORTER = 'alpha'
  21 DEEP_LINKING = True
  22
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/example_project/rgd_example/settings.py b/example_project/rgd_example/settings.py
  --- a/example_project/rgd_example/settings.py
  +++ b/example_project/rgd_example/settings.py
  @@ -19,3 +19,5 @@
   REFETCH_SCHEMA_ON_LOGOUT = True
   OPERATIONS_SORTER = 'alpha'
   DEEP_LINKING = True
  +
  +STATIC_URL = '/static/'
  
verification_info: {"golden_diff": "diff --git a/example_project/rgd_example/settings.py b/example_project/rgd_example/settings.py\n--- a/example_project/rgd_example/settings.py\n+++ b/example_project/rgd_example/settings.py\n@@ -19,3 +19,5 @@\n REFETCH_SCHEMA_ON_LOGOUT = True\n OPERATIONS_SORTER = 'alpha'\n DEEP_LINKING = True\n+\n+STATIC_URL = '/static/'\n", "issue": "Improve VTK.js 3D Viewer\nAfter #406 is merged, we should improve the 3D viewer. Basically, use [this example](https://kitware.github.io/vtk-js/examples/GeometryViewer.html)\r\n\r\nThings we should have:\r\n\r\n- [x] drop-down menu to change the scalar array\r\n- [x] Scalar bar\r\n- [x] Representation style\r\n- [x] Better background color choice (likely black)\r\n- [x] Point size slider\r\n- [x] Support RGB colors\n", "before_files": [{"content": "from rgd_testing_utils.settings import *  # noqa\n\nINSTALLED_APPS += [  # noqa\n    'rgd_3d',\n    'rgd_fmv',\n    'rgd_geometry',\n    'rgd_imagery',\n    # Swagger\n    'drf_yasg',\n    'django_extensions',\n]\n\nROOT_URLCONF = 'rgd_example.urls'\nWSGI_APPLICATION = 'rgd_example.wsgi.application'\n\n\n# Swagger\nREFETCH_SCHEMA_WITH_AUTH = True\nREFETCH_SCHEMA_ON_LOGOUT = True\nOPERATIONS_SORTER = 'alpha'\nDEEP_LINKING = True\n", "path": "example_project/rgd_example/settings.py"}], "after_files": [{"content": "from rgd_testing_utils.settings import *  # noqa\n\nINSTALLED_APPS += [  # noqa\n    'rgd_3d',\n    'rgd_fmv',\n    'rgd_geometry',\n    'rgd_imagery',\n    # Swagger\n    'drf_yasg',\n    'django_extensions',\n]\n\nROOT_URLCONF = 'rgd_example.urls'\nWSGI_APPLICATION = 'rgd_example.wsgi.application'\n\n\n# Swagger\nREFETCH_SCHEMA_WITH_AUTH = True\nREFETCH_SCHEMA_ON_LOGOUT = True\nOPERATIONS_SORTER = 'alpha'\nDEEP_LINKING = True\n\nSTATIC_URL = '/static/'\n", "path": "example_project/rgd_example/settings.py"}]}