diff --git a/blenderkit/__init__.py b/blenderkit/__init__.py
index 2a98518cb007aa87f209f943edf75d3fc5ab4e27..b02985e00cdbdf61c7da4d36c825cf9435f78ce8 100644
--- a/blenderkit/__init__.py
+++ b/blenderkit/__init__.py
@@ -970,7 +970,7 @@ class BlenderKitModelUploadProps(PropertyGroup, BlenderKitCommonUploadProps):
         update=autothumb.update_upload_model_preview)
 
     thumbnail_background_lightness: FloatProperty(name="Thumbnail Background Lightness",
-                                                  description="set to make your material stand out", default=.9,
+                                                  description="set to make your material stand out", default=1.0,
                                                   min=0.01, max=10)
 
     thumbnail_angle: EnumProperty(
diff --git a/blenderkit/autothumb_model_bg.py b/blenderkit/autothumb_model_bg.py
index 9173391e86d4ef0e51d5b26790a8114dddb407d6..fe58a52fa5d0a5e31616446df1e0ec8b8fff2262 100644
--- a/blenderkit/autothumb_model_bg.py
+++ b/blenderkit/autothumb_model_bg.py
@@ -139,19 +139,19 @@ if __name__ == "__main__":
         bpy.context.view_layer.update()
 
         # import blender's HDR here
-        hdr_path = Path('datafiles/studiolights/world/interior.exr')
-        bpath = Path(bpy.utils.resource_path('LOCAL'))
-        ipath = bpath / hdr_path
-        ipath = str(ipath)
+        # hdr_path = Path('datafiles/studiolights/world/interior.exr')
+        # bpath = Path(bpy.utils.resource_path('LOCAL'))
+        # ipath = bpath / hdr_path
+        # ipath = str(ipath)
 
         # this  stuff is for mac and possibly linux. For blender // means relative path.
         # for Mac, // means start of absolute path
-        if ipath.startswith('//'):
-            ipath = ipath[1:]
-
-        img = bpy.data.images['interior.exr']
-        img.filepath = ipath
-        img.reload()
+        # if ipath.startswith('//'):
+        #     ipath = ipath[1:]
+        #
+        # img = bpy.data.images['interior.exr']
+        # img.filepath = ipath
+        # img.reload()
 
         bpy.context.scene.render.resolution_x = int(data['thumbnail_resolution'])
         bpy.context.scene.render.resolution_y = int(data['thumbnail_resolution'])
diff --git a/blenderkit/blendfiles/thumbnailer.blend b/blenderkit/blendfiles/thumbnailer.blend
index 4a27eeabd0db57e0e41ada23d9f0e16850a1ee7b..07b0619ccaecde001806342e47f975202fb68f1d 100644
Binary files a/blenderkit/blendfiles/thumbnailer.blend and b/blenderkit/blendfiles/thumbnailer.blend differ