diff --git a/src/pybricks/_common.py b/src/pybricks/_common.py
index e9d0e5b..6a0b025 100644
--- a/src/pybricks/_common.py
+++ b/src/pybricks/_common.py
@@ -671,7 +671,7 @@ class LightMatrix:
         forever while the rest of your program keeps running.
 
         Arguments:
-            matrix (list): List of Matrix of intensities.
+            matrices (list): List of Matrix of intensities.
             interval (:ref:`time`): Time to display each image in the list.
         """
         pass
diff --git a/src/pybricks/_common.pyi b/src/pybricks/_common.pyi
index 5c4ab78..43f4061 100644
--- a/src/pybricks/_common.pyi
+++ b/src/pybricks/_common.pyi
@@ -110,7 +110,7 @@ class ColorLight:
 
 class LightArray:
     def __init__(self, n: int): ...
-    def on(self, brightness: int) -> None: ...
+    def on(self, brightness: Union[int,(int, int, int, int)]) -> None: ...
     def off(self) -> None: ...
     def blink(self, durations: Collection[int]) -> None: ...
     def animate(self, brightness_values: Collection[int], interval: int) -> None: ...
@@ -119,7 +119,7 @@ class LightMatrix:
     def __init__(self, rows: int, columns: int): ...
     def orientation(self, up: Side) -> None: ...
     def image(self, matrix: Matrix) -> None: ...
-    def animate(self, matrices: Collection[Matrix], interval, int) -> None: ...
+    def animate(self, matrices: Collection[Matrix], interval: int) -> None: ...
     def pixel(self, row: int, column: int, brightness: int = 100) -> None: ...
     def off(self) -> None: ...
     def number(self, number: int) -> None: ...