diff --git a/examples/tests/test_examples.py b/examples/tests/test_examples.py
index 7fbd32e2f..c0cdffbd7 100644
--- a/examples/tests/test_examples.py
+++ b/examples/tests/test_examples.py
@@ -47,7 +47,7 @@ def check_skip_imgui(module):
 
 
 @pytest.mark.parametrize("module", examples_to_run, ids=lambda x: x.stem)
-def test_examples_run(module, force_offscreen):
+def test_examples_run(module, prep_environment):
     """Run every example marked to see if they run without error."""
     if not fpl.IMGUI:
         check_skip_imgui(module)
@@ -56,13 +56,17 @@ def test_examples_run(module, force_offscreen):
 
 
 @pytest.fixture
-def force_offscreen():
+def prep_environment():
     """Force the offscreen canvas to be selected by the auto gui module."""
+    # Make that examples using rendercanvas.auto, will use the offscreen backend
     os.environ["RENDERCANVAS_FORCE_OFFSCREEN"] = "true"
+    # Disable ppaa on the renderer by default. Otherwise all screenshots change when the ppaa shaders are updated.
+    os.environ["PYGFX_PPAA"] = "none"
     try:
         yield
     finally:
         del os.environ["RENDERCANVAS_FORCE_OFFSCREEN"]
+        del os.environ["PYGFX_PPAA"]
 
 
 def test_that_we_are_on_lavapipe():
@@ -86,7 +90,7 @@ def import_from_path(module_name, filename):
 
 
 @pytest.mark.parametrize("module", examples_to_test, ids=lambda x: x.stem)
-def test_example_screenshots(module, force_offscreen):
+def test_example_screenshots(module, prep_environment):
     """Make sure that every example marked outputs the expected."""
 
     if not fpl.IMGUI:
@@ -98,7 +102,9 @@ def test_example_screenshots(module, force_offscreen):
 
     if fpl.IMGUI:
         # there doesn't seem to be a resize event for the manual offscreen canvas
-        example.figure.imgui_renderer._backend.io.display_size = example.figure.canvas.get_logical_size()
+        example.figure.imgui_renderer._backend.io.display_size = (
+            example.figure.canvas.get_logical_size()
+        )
         # run this once so any edge widgets set their sizes and therefore the subplots get the correct rect
         # hacky but it works for now
         example.figure.imgui_renderer.render()
@@ -148,9 +154,9 @@ def test_example_screenshots(module, force_offscreen):
         if os.environ["REGENERATE_SCREENSHOTS"] == "1":
             iio.imwrite(screenshot_path, rgb)
 
-    assert (
-        screenshot_path.exists()
-    ), "found # test_example = true but no reference screenshot available"
+    assert screenshot_path.exists(), (
+        "found # test_example = true but no reference screenshot available"
+    )
 
     ref_img = iio.imread(screenshot_path)
 
@@ -200,5 +206,7 @@ def get_diffs_rgba(slicer):
 
 
 if __name__ == "__main__":
+    os.environ["RENDERCANVAS_FORCE_OFFSCREEN"] = "true"
+    os.environ["PYGFX_PPAA"] = "none"
     test_examples_run("simple")
     test_example_screenshots("simple")
diff --git a/fastplotlib/graphics/selectors/_base_selector.py b/fastplotlib/graphics/selectors/_base_selector.py
index b74bcf759..1542d2bad 100644
--- a/fastplotlib/graphics/selectors/_base_selector.py
+++ b/fastplotlib/graphics/selectors/_base_selector.py
@@ -215,7 +215,7 @@ def _fpl_add_plot_area_hook(self, plot_area):
             wo.add_event_handler(self._toggle_arrow_key_moveable, "double_click")
 
         for fill in self._fill:
-            if fill.material.color_is_transparent:
+            if fill.material.color.a < 1 or fill.material.opacity < 1:
                 self._pfunc_fill = partial(self._check_fill_pointer_event, fill)
                 self._plot_area.renderer.add_event_handler(
                     self._pfunc_fill, "pointer_down"
@@ -392,7 +392,6 @@ def _move_to_pointer(self, ev):
         self._move_graphic(move_info)
 
     def _pointer_enter(self, ev):
-
         if self._hover_responsive is None:
             return
 
diff --git a/fastplotlib/layouts/_figure.py b/fastplotlib/layouts/_figure.py
index bfd97000b..af1a6a610 100644
--- a/fastplotlib/layouts/_figure.py
+++ b/fastplotlib/layouts/_figure.py
@@ -560,12 +560,19 @@ def _render(self, draw=True):
         # draw the underlay planes
         self.renderer.render(self._underlay_scene, self._underlay_camera, flush=False)
 
+        # With new pygfx' blending, the depth buffer is only cleared after each flush, we need a manual depth
+        # clear to erase the depth values set by the underlay.
+        if hasattr(self.renderer, "clear"):
+            self.renderer.clear(depth=True)
+
         # call the animation functions before render
         self._call_animate_functions(self._animate_funcs_pre)
         for subplot in self:
             subplot._render()
 
         # overlay render pass
+        if hasattr(self.renderer, "clear"):
+            self.renderer.clear(depth=True)
         self.renderer.render(self._overlay_scene, self._overlay_camera, flush=False)
 
         self.renderer.flush()
diff --git a/pyproject.toml b/pyproject.toml
index 216b4ab46..59421ba14 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,7 +55,7 @@ tests = [
     "scikit-learn",
     "tqdm",
 ]
-imgui = ["imgui-bundle"]
+imgui = ["imgui-bundle<1.92"]
 dev = ["fastplotlib[docs,notebook,tests,imgui]"]
 
 [project.urls]