diff --git a/glue_ar/common/scatter_gltf.py b/glue_ar/common/scatter_gltf.py
index a015192..f6190cb 100644
--- a/glue_ar/common/scatter_gltf.py
+++ b/glue_ar/common/scatter_gltf.py
@@ -3,7 +3,7 @@
 from glue.utils.array import ensure_numerical
 from glue_vispy_viewers.common.viewer_state import Vispy3DViewerState
 from glue_vispy_viewers.scatter.layer_state import ScatterLayerState
-from numpy import isfinite, ndarray
+from numpy import ndarray
 from numpy.linalg import norm
 
 from typing import List, Literal, Optional, Tuple
@@ -15,7 +15,7 @@
                                   normalize, rectangular_prism_triangulation, sphere_triangles
 from glue_ar.gltf_utils import SHORT_MAX, add_points_to_bytearray, add_triangles_to_bytearray, \
                                index_mins, index_maxes
-from glue_ar.utils import Viewer3DState, get_stretches, iterable_has_nan, hex_to_components, \
+from glue_ar.utils import Viewer3DState, iterable_has_nan, hex_to_components, \
                           layer_color, offset_triangles, unique_id, xyz_bounds, xyz_for_layer, Bounds
 from glue_ar.common.gltf_builder import GLTFBuilder
 from glue_ar.common.scatter import Scatter3DLayerState, ScatterLayerState3D, \
diff --git a/glue_ar/common/scatter_stl.py b/glue_ar/common/scatter_stl.py
index 6d29be5..9242338 100644
--- a/glue_ar/common/scatter_stl.py
+++ b/glue_ar/common/scatter_stl.py
@@ -41,7 +41,7 @@ def add_scatter_layer_stl(builder: STLBuilder,
                          preserve_aspect=viewer_state.native_aspect,
                          mask=mask,
                          scaled=True)
-    
+
     if len(data) == 0:
         return