Allow setting label colors with Tuples

Corrects issues with converting tuples of RGB values to ints, which Label objects require.

Author: ch4nsuk3

adafruit_button/button.py

@@ -179,9 +179,9 @@ def __init__(
         self._selected_outline = _check_color(selected_outline)
 
         if self.selected_fill is None and fill_color is not None:
-            self.selected_fill = (~self._fill_color) & 0xFFFFFF
+            self.selected_fill = (~_check_color(self._fill_color)) & 0xFFFFFF
         if self.selected_outline is None and outline_color is not None:
-            self.selected_outline = (~self._outline_color) & 0xFFFFFF
+            self.selected_outline = (~_check_color(self._outline_color)) & 0xFFFFFF
 
         self._create_body()
         if self.body:

adafruit_button/button_base.py

@@ -126,7 +126,7 @@ def label(self, newtext: str) -> None:
         self.append(self._label)
 
         if (self.selected_label is None) and (self._label_color is not None):
-            self.selected_label = (~self._label_color) & 0xFFFFFF
+            self.selected_label = (~_check_color(self._label_color)) & 0xFFFFFF
 
     def _subclass_selected_behavior(self, value: Optional[Any]) -> None:
         # Subclasses should override this!