diff --git a/android/tests_backend/widgets/label.py b/android/tests_backend/widgets/label.py
index 21dda7535f..c8e7ed6e62 100644
--- a/android/tests_backend/widgets/label.py
+++ b/android/tests_backend/widgets/label.py
@@ -2,7 +2,7 @@
 from java import jclass
 
 from .base import SimpleProbe
-from .properties import to_toga_text_align, toga_color
+from .properties import toga_color, toga_text_align
 
 
 class LabelProbe(SimpleProbe):
@@ -30,4 +30,4 @@ def text_align(self):
         justification_mode = (
             None if Build.VERSION.SDK_INT < 26 else self.native.getJustificationMode()
         )
-        return to_toga_text_align(self.native.getGravity(), justification_mode)
+        return toga_text_align(self.native.getGravity(), justification_mode)
diff --git a/android/tests_backend/widgets/properties.py b/android/tests_backend/widgets/properties.py
index fa74eda5d0..a21cb874e0 100644
--- a/android/tests_backend/widgets/properties.py
+++ b/android/tests_backend/widgets/properties.py
@@ -22,7 +22,7 @@ def toga_color(color_int):
         )
 
 
-def to_toga_text_align(gravity, justification_mode=None):
+def toga_text_align(gravity, justification_mode=None):
     horizontal_gravity = gravity & Gravity.HORIZONTAL_GRAVITY_MASK
     if (Build.VERSION.SDK_INT < 26) or (
         justification_mode in (None, Layout.JUSTIFICATION_MODE_NONE)
diff --git a/cocoa/tests_backend/widgets/label.py b/cocoa/tests_backend/widgets/label.py
index be6c448879..58d827fc28 100644
--- a/cocoa/tests_backend/widgets/label.py
+++ b/cocoa/tests_backend/widgets/label.py
@@ -1,7 +1,7 @@
 from toga_cocoa.libs import NSTextField
 
 from .base import SimpleProbe
-from .properties import to_toga_text_align, toga_color
+from .properties import toga_color, toga_text_align
 
 
 class LabelProbe(SimpleProbe):
@@ -17,7 +17,7 @@ def color(self):
 
     @property
     def text_align(self):
-        return to_toga_text_align(self.native.alignment)
+        return toga_text_align(self.native.alignment)
 
     def assert_vertical_text_align(self, expected):
         # Vertical alignment isn't configurable on NSTextField
diff --git a/cocoa/tests_backend/widgets/multilinetextinput.py b/cocoa/tests_backend/widgets/multilinetextinput.py
index ec2e8de5af..76894cb19d 100644
--- a/cocoa/tests_backend/widgets/multilinetextinput.py
+++ b/cocoa/tests_backend/widgets/multilinetextinput.py
@@ -2,7 +2,7 @@
 from toga_cocoa.libs import NSRange, NSScrollView, NSTextView
 
 from .base import SimpleProbe
-from .properties import to_toga_text_align, toga_color
+from .properties import toga_color, toga_text_align
 
 
 class MultilineTextInputProbe(SimpleProbe):
@@ -59,7 +59,7 @@ def font(self):
 
     @property
     def text_align(self):
-        return to_toga_text_align(self.native_text.alignment)
+        return toga_text_align(self.native_text.alignment)
 
     def assert_vertical_text_align(self, expected):
         # Vertical alignment isn't configurable on NSTextView
diff --git a/cocoa/tests_backend/widgets/numberinput.py b/cocoa/tests_backend/widgets/numberinput.py
index e06b09bee3..a576aeb3ac 100644
--- a/cocoa/tests_backend/widgets/numberinput.py
+++ b/cocoa/tests_backend/widgets/numberinput.py
@@ -11,7 +11,7 @@
 )
 
 from .base import SimpleProbe
-from .properties import to_toga_text_align, toga_color
+from .properties import toga_color, toga_text_align
 
 
 class NumberInputProbe(SimpleProbe):
@@ -87,7 +87,7 @@ def font(self):
 
     @property
     def text_align(self):
-        return to_toga_text_align(self.native_input.alignment)
+        return toga_text_align(self.native_input.alignment)
 
     def assert_vertical_text_align(self, expected):
         # Vertical alignment isn't configurable on NSTextField
diff --git a/cocoa/tests_backend/widgets/properties.py b/cocoa/tests_backend/widgets/properties.py
index f9155556c7..de5b55621f 100644
--- a/cocoa/tests_backend/widgets/properties.py
+++ b/cocoa/tests_backend/widgets/properties.py
@@ -20,7 +20,7 @@ def toga_color(color):
         return None
 
 
-def to_toga_text_align(alignment):
+def toga_text_align(alignment):
     return {
         NSLeftTextAlignment: LEFT,
         NSRightTextAlignment: RIGHT,
diff --git a/cocoa/tests_backend/widgets/textinput.py b/cocoa/tests_backend/widgets/textinput.py
index dd676d5e0c..aa8f152a5e 100644
--- a/cocoa/tests_backend/widgets/textinput.py
+++ b/cocoa/tests_backend/widgets/textinput.py
@@ -9,7 +9,7 @@
 )
 
 from .base import SimpleProbe
-from .properties import to_toga_text_align, toga_color
+from .properties import toga_color, toga_text_align
 
 
 class TextInputProbe(SimpleProbe):
@@ -61,7 +61,7 @@ def font(self):
 
     @property
     def text_align(self):
-        result = to_toga_text_align(self.native.alignment)
+        result = toga_text_align(self.native.alignment)
         if result == RIGHT:
             assert self.impl.error_label.alignment == NSLeftTextAlignment
         else:
diff --git a/core/src/toga/style/pack.py b/core/src/toga/style/pack.py
index e3c85fdf7a..e9e4c0c093 100644
--- a/core/src/toga/style/pack.py
+++ b/core/src/toga/style/pack.py
@@ -68,7 +68,8 @@
 VISIBILITY_CHOICES = Choices(VISIBLE, HIDDEN)
 DIRECTION_CHOICES = Choices(ROW, COLUMN)
 ALIGN_ITEMS_CHOICES = Choices(START, CENTER, END)
-ALIGNMENT_CHOICES = Choices(TOP, RIGHT, BOTTOM, LEFT, CENTER)
+# Deprecated, but maintained for backwards compatibility with Toga <= 0.4.8
+ALIGNMENT_CHOICES = Choices(LEFT, RIGHT, TOP, BOTTOM, CENTER)
 
 SIZE_CHOICES = Choices(NONE, integer=True)
 FLEX_CHOICES = Choices(number=True)
@@ -1053,9 +1054,9 @@ def __css__(self) -> str:
 Pack.validated_property("display", choices=DISPLAY_CHOICES, initial=PACK)
 Pack.validated_property("visibility", choices=VISIBILITY_CHOICES, initial=VISIBLE)
 Pack.validated_property("direction", choices=DIRECTION_CHOICES, initial=ROW)
-Pack.validated_property("alignment", choices=ALIGNMENT_CHOICES)
-# Legacy "alias" (ish) of align_items
 Pack.validated_property("align_items", choices=ALIGN_ITEMS_CHOICES)
+# Deprecated, but maintained for backwards compatibility with Toga <= 0.4.8
+Pack.validated_property("alignment", choices=ALIGNMENT_CHOICES)
 
 Pack.validated_property("width", choices=SIZE_CHOICES, initial=NONE)
 Pack.validated_property("height", choices=SIZE_CHOICES, initial=NONE)
diff --git a/gtk/tests_backend/widgets/label.py b/gtk/tests_backend/widgets/label.py
index 1f6069bc9c..55b47914c6 100644
--- a/gtk/tests_backend/widgets/label.py
+++ b/gtk/tests_backend/widgets/label.py
@@ -1,7 +1,7 @@
 from toga_gtk.libs import Gtk
 
 from .base import SimpleProbe
-from .properties import to_toga_x_text_align, to_toga_y_text_align
+from .properties import toga_x_text_align, toga_y_text_align
 
 
 class LabelProbe(SimpleProbe):
@@ -13,11 +13,11 @@ def text(self):
 
     @property
     def text_align(self):
-        return to_toga_x_text_align(self.native.get_xalign(), self.native.get_justify())
+        return toga_x_text_align(self.native.get_xalign(), self.native.get_justify())
 
     @property
     def vertical_text_align(self):
         return
 
     def assert_vertical_text_align(self, expected):
-        assert to_toga_y_text_align(self.native.get_yalign()) == expected
+        assert toga_y_text_align(self.native.get_yalign()) == expected
diff --git a/gtk/tests_backend/widgets/multilinetextinput.py b/gtk/tests_backend/widgets/multilinetextinput.py
index 9f3a96d6ea..0acf22fd42 100644
--- a/gtk/tests_backend/widgets/multilinetextinput.py
+++ b/gtk/tests_backend/widgets/multilinetextinput.py
@@ -3,7 +3,7 @@
 from toga_gtk.libs import Gtk
 
 from .base import SimpleProbe
-from .properties import to_toga_text_align_from_justification, toga_color
+from .properties import toga_color, toga_text_align_from_justification
 
 
 class MultilineTextInputProbe(SimpleProbe):
@@ -89,7 +89,7 @@ def font(self):
 
     @property
     def text_align(self):
-        return to_toga_text_align_from_justification(
+        return toga_text_align_from_justification(
             self.native_textview.get_justification(),
         )
 
diff --git a/gtk/tests_backend/widgets/numberinput.py b/gtk/tests_backend/widgets/numberinput.py
index bb2516b8cd..5029d509d8 100644
--- a/gtk/tests_backend/widgets/numberinput.py
+++ b/gtk/tests_backend/widgets/numberinput.py
@@ -4,7 +4,7 @@
 from toga_gtk.libs import Gtk
 
 from .base import SimpleProbe
-from .properties import to_toga_x_text_align
+from .properties import toga_x_text_align
 
 
 class NumberInputProbe(SimpleProbe):
@@ -32,7 +32,7 @@ async def decrement(self):
 
     @property
     def text_align(self):
-        return to_toga_x_text_align(self.native.get_alignment())
+        return toga_x_text_align(self.native.get_alignment())
 
     def assert_text_align(self, expected):
         if expected == JUSTIFY:
diff --git a/gtk/tests_backend/widgets/properties.py b/gtk/tests_backend/widgets/properties.py
index d0b9debf6d..18470f02be 100644
--- a/gtk/tests_backend/widgets/properties.py
+++ b/gtk/tests_backend/widgets/properties.py
@@ -23,7 +23,7 @@ def toga_color(color):
         return None
 
 
-def to_toga_x_text_align(xalign, justify=None):
+def toga_x_text_align(xalign, justify=None):
     try:
         return {
             0.0: JUSTIFY if justify == Gtk.Justification.FILL else LEFT,
@@ -36,7 +36,7 @@ def to_toga_x_text_align(xalign, justify=None):
         )
 
 
-def to_toga_y_text_align(yalign):
+def toga_y_text_align(yalign):
     try:
         return {
             0.0: TOP,
@@ -47,7 +47,7 @@ def to_toga_y_text_align(yalign):
         pytest.fail(f"Can't interpret GTK y text alignment {yalign}")
 
 
-def to_toga_text_align_from_justification(justify):
+def toga_text_align_from_justification(justify):
     return {
         Gtk.Justification.LEFT: LEFT,
         Gtk.Justification.RIGHT: RIGHT,
diff --git a/gtk/tests_backend/widgets/textinput.py b/gtk/tests_backend/widgets/textinput.py
index 3160981cc0..988e2baaae 100644
--- a/gtk/tests_backend/widgets/textinput.py
+++ b/gtk/tests_backend/widgets/textinput.py
@@ -4,7 +4,7 @@
 from toga_gtk.libs import Gtk
 
 from .base import SimpleProbe
-from .properties import to_toga_x_text_align
+from .properties import toga_x_text_align
 
 
 class TextInputProbe(SimpleProbe):
@@ -34,7 +34,7 @@ def placeholder_hides_on_focus(self):
 
     @property
     def text_align(self):
-        return to_toga_x_text_align(self.native.get_alignment())
+        return toga_x_text_align(self.native.get_alignment())
 
     def assert_text_align(self, expected):
         if expected == JUSTIFY:
diff --git a/iOS/tests_backend/widgets/label.py b/iOS/tests_backend/widgets/label.py
index 90293647c3..55155bdebb 100644
--- a/iOS/tests_backend/widgets/label.py
+++ b/iOS/tests_backend/widgets/label.py
@@ -1,7 +1,7 @@
 from toga_iOS.libs import UILabel
 
 from .base import SimpleProbe
-from .properties import to_toga_text_align, toga_color
+from .properties import toga_color, toga_text_align
 
 
 class LabelProbe(SimpleProbe):
@@ -20,7 +20,7 @@ def color(self):
 
     @property
     def text_align(self):
-        return to_toga_text_align(self.native.textAlignment)
+        return toga_text_align(self.native.textAlignment)
 
     def assert_vertical_text_align(self, alignment):
         # iOS has a custom draw method that always draw the text at the top;
diff --git a/iOS/tests_backend/widgets/numberinput.py b/iOS/tests_backend/widgets/numberinput.py
index 0c2df37538..fcbe70401b 100644
--- a/iOS/tests_backend/widgets/numberinput.py
+++ b/iOS/tests_backend/widgets/numberinput.py
@@ -4,7 +4,7 @@
 from toga_iOS.libs import UITextField
 
 from .base import SimpleProbe
-from .properties import to_toga_text_align, toga_color
+from .properties import toga_color, toga_text_align
 
 
 class NumberInputProbe(SimpleProbe):
@@ -30,7 +30,7 @@ def color(self):
 
     @property
     def text_align(self):
-        return to_toga_text_align(self.native.textAlignment)
+        return toga_text_align(self.native.textAlignment)
 
     def assert_vertical_text_align(self, expected):
         # Vertical alignment isn't configurable on a UITextField
diff --git a/iOS/tests_backend/widgets/properties.py b/iOS/tests_backend/widgets/properties.py
index 9777984afd..c91a93ce0e 100644
--- a/iOS/tests_backend/widgets/properties.py
+++ b/iOS/tests_backend/widgets/properties.py
@@ -33,7 +33,7 @@ def toga_color(color):
         return None
 
 
-def to_toga_text_align(alignment):
+def toga_text_align(alignment):
     return {
         NSLeftTextAlignment: LEFT,
         NSRightTextAlignment: RIGHT,
diff --git a/iOS/tests_backend/widgets/selection.py b/iOS/tests_backend/widgets/selection.py
index 1976dcecef..a3a2863962 100644
--- a/iOS/tests_backend/widgets/selection.py
+++ b/iOS/tests_backend/widgets/selection.py
@@ -5,7 +5,7 @@
 from toga_iOS.libs import UIPickerView, UITextField
 
 from .base import SimpleProbe
-from .properties import to_toga_text_align, toga_color
+from .properties import toga_color, toga_text_align
 
 
 class SelectionProbe(SimpleProbe):
@@ -21,7 +21,7 @@ def assert_resizes_on_content_change(self):
 
     @property
     def text_align(self):
-        return to_toga_text_align(self.native.textAlignment)
+        return toga_text_align(self.native.textAlignment)
 
     def assert_vertical_text_align(self, expected):
         # Vertical text alignment isn't configurable on UITextField
diff --git a/iOS/tests_backend/widgets/textinput.py b/iOS/tests_backend/widgets/textinput.py
index cdce9c1fad..c42b2ea393 100644
--- a/iOS/tests_backend/widgets/textinput.py
+++ b/iOS/tests_backend/widgets/textinput.py
@@ -4,7 +4,7 @@
 from toga_iOS.libs import UITextField
 
 from .base import SimpleProbe
-from .properties import to_toga_text_align, toga_color
+from .properties import toga_color, toga_text_align
 
 
 class TextInputProbe(SimpleProbe):
@@ -44,7 +44,7 @@ def color(self):
 
     @property
     def text_align(self):
-        return to_toga_text_align(self.native.textAlignment)
+        return toga_text_align(self.native.textAlignment)
 
     def assert_vertical_text_align(self, expected):
         # Vertical text alignment isn't configurable on UITextField
diff --git a/winforms/tests_backend/widgets/label.py b/winforms/tests_backend/widgets/label.py
index c5de57ad06..3c2e6507d2 100644
--- a/winforms/tests_backend/widgets/label.py
+++ b/winforms/tests_backend/widgets/label.py
@@ -1,7 +1,7 @@
 import System.Windows.Forms
 
 from .base import SimpleProbe
-from .properties import to_toga_x_text_align, to_toga_y_text_align
+from .properties import toga_x_text_align, toga_y_text_align
 
 
 class LabelProbe(SimpleProbe):
@@ -13,7 +13,7 @@ def text(self):
 
     @property
     def text_align(self):
-        return to_toga_x_text_align(self.native.TextAlign)
+        return toga_x_text_align(self.native.TextAlign)
 
     def assert_vertical_text_align(self, expected):
-        assert to_toga_y_text_align(self.native.TextAlign) == expected
+        assert toga_y_text_align(self.native.TextAlign) == expected
diff --git a/winforms/tests_backend/widgets/multilinetextinput.py b/winforms/tests_backend/widgets/multilinetextinput.py
index 172ff786d6..6e97ff33f9 100644
--- a/winforms/tests_backend/widgets/multilinetextinput.py
+++ b/winforms/tests_backend/widgets/multilinetextinput.py
@@ -1,7 +1,7 @@
 import System.Windows.Forms
 from System.Drawing import SystemColors
 
-from .properties import to_toga_x_text_align
+from .properties import toga_x_text_align
 from .textinput import TextInputProbe
 
 
@@ -58,4 +58,4 @@ async def wait_for_scroll_completion(self):
     @property
     def text_align(self):
         self.native.SelectAll()
-        return to_toga_x_text_align(self.native.SelectionAlignment)
+        return toga_x_text_align(self.native.SelectionAlignment)
diff --git a/winforms/tests_backend/widgets/numberinput.py b/winforms/tests_backend/widgets/numberinput.py
index 8b3d60f257..283d2a80c7 100644
--- a/winforms/tests_backend/widgets/numberinput.py
+++ b/winforms/tests_backend/widgets/numberinput.py
@@ -2,7 +2,7 @@
 from System.Windows.Forms import NumericUpDown
 
 from .base import SimpleProbe
-from .properties import to_toga_x_text_align
+from .properties import toga_x_text_align
 
 
 class NumberInputProbe(SimpleProbe):
@@ -34,7 +34,7 @@ async def decrement(self):
 
     @property
     def text_align(self):
-        return to_toga_x_text_align(self.native.TextAlign)
+        return toga_x_text_align(self.native.TextAlign)
 
     def assert_vertical_text_align(self, expected):
         # Vertical text alignment isn't configurable in this native widget.
diff --git a/winforms/tests_backend/widgets/properties.py b/winforms/tests_backend/widgets/properties.py
index 8db6917534..276126c7fe 100644
--- a/winforms/tests_backend/widgets/properties.py
+++ b/winforms/tests_backend/widgets/properties.py
@@ -9,7 +9,7 @@ def toga_color(color):
     return rgba(color.R, color.G, color.B, color.A / 255)
 
 
-def to_toga_x_text_align(alignment):
+def toga_x_text_align(alignment):
     return {
         ContentAlignment.TopLeft: LEFT,
         ContentAlignment.MiddleLeft: LEFT,
@@ -27,7 +27,7 @@ def to_toga_x_text_align(alignment):
     }[alignment]
 
 
-def to_toga_y_text_align(alignment):
+def toga_y_text_align(alignment):
     return {
         ContentAlignment.TopLeft: TOP,
         ContentAlignment.TopCenter: TOP,
diff --git a/winforms/tests_backend/widgets/textinput.py b/winforms/tests_backend/widgets/textinput.py
index af42ba4fa4..dee65b2f39 100644
--- a/winforms/tests_backend/widgets/textinput.py
+++ b/winforms/tests_backend/widgets/textinput.py
@@ -6,7 +6,7 @@
 from System.Windows.Forms import TextBox
 
 from .base import SimpleProbe
-from .properties import to_toga_x_text_align
+from .properties import toga_x_text_align
 
 
 class TextInputProbe(SimpleProbe):
@@ -49,7 +49,7 @@ def readonly(self):
 
     @property
     def text_align(self):
-        return to_toga_x_text_align(self.native.TextAlign)
+        return toga_x_text_align(self.native.TextAlign)
 
     def assert_vertical_text_align(self, expected):
         # Vertical text alignment isn't configurable in this native widget.