diff --git a/libqtile/backend/wayland/window.py b/libqtile/backend/wayland/window.py
index 8f2c12a..563cc83 100644
--- a/libqtile/backend/wayland/window.py
+++ b/libqtile/backend/wayland/window.py
@@ -114,6 +114,7 @@ class Window(typing.Generic[S], _Base, base.Window, HasListeners):
         self.x = 0
         self.y = 0
         self._opacity: float = 1.0
+        self._rounding: int = 0
         self._wm_class: str | None = None
         self._idle_inhibitors_count: int = 0
         self._urgent = False
@@ -389,16 +390,43 @@ class Window(typing.Generic[S], _Base, base.Window, HasListeners):
 
     @opacity.setter
     def opacity(self, opacity: float) -> None:
-        if opacity < 1.0:
+        if self.container.node:
+            buf = SceneBuffer.from_node(self.container.node)
+            if buf:
+                buf.set_opacity(opacity)
+            else:
+                logger.warning(
+                    f"Failed to turn node {self.container.node} into a buffer!"
+                )
+        else:
             logger.warning(
-                "Sorry, transparency is not yet supported by the wlroots API used by "
-                "Qtile. Transparency can only be achieved if the client sets it."
+                "Sorry, opacity is not implemented for this window type."
             )
             # wlroots' scene graph doesn't support setting the opacity of trees/nodes by
             # the compositor. See: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3393
             # If/when that becomes supported, this warning can be removed.
         self._opacity = opacity
 
+    @property
+    def rounding(self) -> int:
+        return self._rounding
+
+    @rounding.setter
+    def rounding(self, radii: int) -> None:
+        if self.container.node:
+            buf = SceneBuffer.from_node(self.container.node)
+            if buf:
+                buf.set_corner_radius(radii)
+            else:
+                logger.warning(
+                    f"Failed to turn node {self.container.node} into a buffer!"
+                )
+        else:
+            logger.warning(
+                "Sorry, rounding is not implemented for this window type."
+            )
+            
+
     @property
     def floating(self) -> bool:
         return self._float_state != FloatStates.NOT_FLOATING
@@ -921,6 +949,7 @@ class Internal(_Base, base.Internal):
         self._width: int = width
         self._height: int = height
         self._opacity: float = 1.0
+        self._rounding: int = 0
 
         # Store this object on the scene node for finding the window under the pointer.
         self.wlr_buffer, self.surface = self._new_buffer(init=True)