diff --git a/src/spatialdata_plot/pl/render.py b/src/spatialdata_plot/pl/render.py
index 892dbf6a..6574730d 100644
--- a/src/spatialdata_plot/pl/render.py
+++ b/src/spatialdata_plot/pl/render.py
@@ -1016,7 +1016,7 @@ def _render_points(
     elif method == "matplotlib":
         # update axis limits if plot was empty before (necessary if datashader comes after)
         update_parameters = not _mpl_ax_contains_elements(ax)
-        _cax = ax.scatter(
+        cax = ax.scatter(
             adata[:, 0].X.flatten(),
             adata[:, 1].X.flatten(),
             s=render_params.size,
@@ -1029,7 +1029,6 @@ def _render_points(
             zorder=render_params.zorder,
             plotnonfinite=True,  # nan points should be rendered as well
         )
-        cax = ax.add_collection(_cax)
         if update_parameters:
             # necessary if points are plotted with mpl first and then with datashader
             extent = get_extent(sdata_filt.points[element], coordinate_system=coordinate_system)
@@ -1721,7 +1720,7 @@ def _draw_labels(
             outline_color=outline_color,
         )
 
-        _cax = ax.imshow(
+        cax = ax.imshow(
             labels,
             rasterized=True,
             cmap=None if categorical else render_params.cmap_params.cmap,
@@ -1730,9 +1729,8 @@ def _draw_labels(
             origin="lower",
             zorder=render_params.zorder,
         )
-        _cax.set_transform(trans_data)
-        cax = ax.add_image(_cax)
-        return cax  # noqa: RET504
+        cax.set_transform(trans_data)
+        return cax
 
     # When color is a literal (col_for_color is None) and no explicit outline_color,
     # use the literal color for outlines so they are visible (e.g., color='white' on
diff --git a/tests/_images/ColorbarControls_colorbar_can_have_two_colorbars_on_same_side.png b/tests/_images/ColorbarControls_colorbar_can_have_two_colorbars_on_same_side.png
index 0584121c..cc704883 100644
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diff --git a/tests/_images/Labels_can_color_with_norm_and_clipping.png b/tests/_images/Labels_can_color_with_norm_and_clipping.png
index 474b9ad2..9f0c50c9 100644
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diff --git a/tests/_images/Labels_can_color_with_norm_no_clipping.png b/tests/_images/Labels_can_color_with_norm_no_clipping.png
index 26488177..1eeb7bcf 100644
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diff --git a/tests/_images/Labels_respects_custom_colors_from_uns.png b/tests/_images/Labels_respects_custom_colors_from_uns.png
index 9b60803a..d2646ab4 100644
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diff --git a/tests/_images/NotebooksTransformations_can_render_transformations_raccoon_inverse.png b/tests/_images/NotebooksTransformations_can_render_transformations_raccoon_inverse.png
index e3c030fa..8e649232 100644
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diff --git a/tests/_images/NotebooksTransformations_can_render_transformations_raccoon_mapaxis.png b/tests/_images/NotebooksTransformations_can_render_transformations_raccoon_mapaxis.png
index dab7362a..2c068555 100644
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diff --git a/tests/_images/NotebooksTransformations_can_render_transformations_raccoon_overlay.png b/tests/_images/NotebooksTransformations_can_render_transformations_raccoon_overlay.png
index e3c030fa..1efad1d3 100644
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diff --git a/tests/_images/NotebooksTransformations_can_render_transformations_raccoon_rotation.png b/tests/_images/NotebooksTransformations_can_render_transformations_raccoon_rotation.png
index 3912a0f2..80ade3e1 100644
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diff --git a/tests/_images/NotebooksTransformations_can_render_transformations_raccoon_translation.png b/tests/_images/NotebooksTransformations_can_render_transformations_raccoon_translation.png
index 3cca95c1..ebd03f45 100644
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