diff --git a/src/textual_paint/ascii_borders.py b/src/textual_paint/ascii_borders.py
new file mode 100644
index 0000000..d3d0a74
--- /dev/null
+++ b/src/textual_paint/ascii_borders.py
@@ -0,0 +1,339 @@
+"""Provides ASCII borders for older terminals."""
+
+from textual._border import BORDER_CHARS, BORDER_LOCATIONS
+
+def force_ascii_borders() -> None:
+    """Force all borders to use ASCII characters."""
+
+    # replace all with ascii border style
+    for key in BORDER_CHARS:
+        BORDER_CHARS[key] = (
+            ("+", "-", "+"),
+            ("|", " ", "|"),
+            ("+", "-", "+"),
+        )
+
+    # BORDER_CHARS[""] = (
+    #     (" ", " ", " "),
+    #     (" ", " ", " "),
+    #     (" ", " ", " "),
+    # )
+    # # was originally: (
+    # #     (" ", " ", " "),
+    # #     (" ", " ", " "),
+    # #     (" ", " ", " "),
+    # # )
+
+    # BORDER_CHARS["ascii"] = (
+    #     ("+", "-", "+"),
+    #     ("|", " ", "|"),
+    #     ("+", "-", "+"),
+    # )
+    # # was originally: (
+    # #     ("+", "-", "+"),
+    # #     ("|", " ", "|"),
+    # #     ("+", "-", "+"),
+    # # )
+
+    # BORDER_CHARS["none"] = (
+    #     (" ", " ", " "),
+    #     (" ", " ", " "),
+    #     (" ", " ", " "),
+    # )
+    # # was originally: (
+    # #     (" ", " ", " "),
+    # #     (" ", " ", " "),
+    # #     (" ", " ", " "),
+    # # )
+
+    # BORDER_CHARS["hidden"] = (
+    #     (" ", " ", " "),
+    #     (" ", " ", " "),
+    #     (" ", " ", " "),
+    # )
+    # # was originally: (
+    # #     (" ", " ", " "),
+    # #     (" ", " ", " "),
+    # #     (" ", " ", " "),
+    # # )
+
+    # BORDER_CHARS["blank"] = (
+    #     (" ", " ", " "),
+    #     (" ", " ", " "),
+    #     (" ", " ", " "),
+    # )
+    # # was originally: (
+    # #     (" ", " ", " "),
+    # #     (" ", " ", " "),
+    # #     (" ", " ", " "),
+    # # )
+
+    BORDER_CHARS["round"] = (
+        (".", "-", "."),
+        ("|", " ", "|"),
+        ("'", "-", "'"),
+    )
+    # was originally: (
+    #     ("╭", "─", "╮"),
+    #     ("│", " ", "│"),
+    #     ("╰", "─", "╯"),
+    # )
+
+    # This is actually supported in old terminals, but it's not technically ASCII...
+    # BORDER_CHARS["solid"] = (
+    #     ("┌", "─", "┐"),
+    #     ("│", " ", "│"),
+    #     ("└", "─", "┘"),
+    # )
+    # # was originally: (
+    # #     ("┌", "─", "┐"),
+    # #     ("│", " ", "│"),
+    # #     ("└", "─", "┘"),
+    # # )
+
+    BORDER_CHARS["double"] = (
+        ("#", "=", "#"),
+        ("H", " ", "H"),
+        ("#", "=", "#"),
+    )
+    # was originally: (
+    #     ("╔", "═", "╗"),
+    #     ("║", " ", "║"),
+    #     ("╚", "═", "╝"),
+    # )
+
+    BORDER_CHARS["dashed"] = (
+        (":", '"', ":"),
+        (":", " ", ":"),
+        ("'", '"', "'"),
+    )
+    # was originally: (
+    #     ("┏", "╍", "┓"),
+    #     ("╏", " ", "╏"),
+    #     ("┗", "╍", "┛"),
+    # )
+
+    # BORDER_CHARS["heavy"] = (
+    #     ("┏", "━", "┓"),
+    #     ("┃", " ", "┃"),
+    #     ("┗", "━", "┛"),
+    # )
+    # # was originally: (
+    # #     ("┏", "━", "┓"),
+    # #     ("┃", " ", "┃"),
+    # #     ("┗", "━", "┛"),
+    # # )
+
+    # BORDER_CHARS["inner"] = (
+    #     ("▗", "▄", "▖"),
+    #     ("▐", " ", "▌"),
+    #     ("▝", "▀", "▘"),
+    # )
+    # # was originally: (
+    # #     ("▗", "▄", "▖"),
+    # #     ("▐", " ", "▌"),
+    # #     ("▝", "▀", "▘"),
+    # # )
+
+    # BORDER_CHARS["outer"] = (
+    #     ("▛", "▀", "▜"),
+    #     ("▌", " ", "▐"),
+    #     ("▙", "▄", "▟"),
+    # )
+    # # was originally: (
+    # #     ("▛", "▀", "▜"),
+    # #     ("▌", " ", "▐"),
+    # #     ("▙", "▄", "▟"),
+    # # )
+
+    # BORDER_CHARS["thick"] = (
+    #     ("█", "▀", "█"),
+    #     ("█", " ", "█"),
+    #     ("█", "▄", "█"),
+    # )
+    # # was originally: (
+    # #     ("█", "▀", "█"),
+    # #     ("█", " ", "█"),
+    # #     ("█", "▄", "█"),
+    # # )
+
+    BORDER_CHARS["hkey"] = (
+        (" ", " ", " "),
+        (" ", " ", " "),
+        ("_", "_", "_"),
+    )
+    # was originally: (
+    #     ("▔", "▔", "▔"),
+    #     (" ", " ", " "),
+    #     ("▁", "▁", "▁"),
+    # )
+
+    BORDER_CHARS["vkey"] = (
+        ("[", " ", "]"),
+        ("[", " ", "]"),
+        ("[", " ", "]"),
+    )
+    # was originally: (
+    #     ("▏", " ", "▕"),
+    #     ("▏", " ", "▕"),
+    #     ("▏", " ", "▕"),
+    # )
+
+    BORDER_CHARS["tall"] = (
+        ("[", " ", "]"),
+        ("[", " ", "]"),
+        ("[", "_", "]"),
+    )
+    # was originally: (
+    #     ("▊", "▔", "▎"),
+    #     ("▊", " ", "▎"),
+    #     ("▊", "▁", "▎"),
+    # )
+
+    # BORDER_CHARS["panel"] = (
+    #     ("▊", "█", "▎"),
+    #     ("▊", " ", "▎"),
+    #     ("▊", "▁", "▎"),
+    # )
+    # # was originally: (
+    # #     ("▊", "█", "▎"),
+    # #     ("▊", " ", "▎"),
+    # #     ("▊", "▁", "▎"),
+    # # )
+
+    BORDER_CHARS["wide"] = (
+        ("_", "_", "_"),
+        ("[", " ", "]"),
+        (" ", " ", " "),
+    )
+    # was originally: (
+    #     ("▁", "▁", "▁"),
+    #     ("▎", " ", "▊"),
+    #     ("▔", "▔", "▔"),
+    # )
+
+    # Prevent inverse colors
+    for key in BORDER_LOCATIONS:
+        BORDER_LOCATIONS[key] = tuple(
+            tuple(value % 2 for value in row)
+            for row in BORDER_LOCATIONS[key]
+        )
+    # Prevent imbalanced borders
+    zeros = (
+        (0, 0, 0),
+        (0, 0, 0),
+        (0, 0, 0),
+    )
+    BORDER_LOCATIONS["panel"] = zeros
+    BORDER_LOCATIONS["tall"] = zeros
+    BORDER_LOCATIONS["wide"] = (
+        (1, 1, 1),
+        (0, 1, 0),
+        (1, 1, 1),
+    )
+
+
+if __name__ == "__main__":
+    force_ascii_borders()
+
+    from textual.app import App
+    from textual.containers import Grid
+    from textual.widgets import Label
+
+    class AllBordersApp(App[None]):
+
+        CSS = """
+        #ascii {
+            border: ascii $accent;
+        }
+
+        #panel {
+            border: panel $accent;
+        }
+
+        #dashed {
+            border: dashed $accent;
+        }
+
+        #double {
+            border: double $accent;
+        }
+
+        #heavy {
+            border: heavy $accent;
+        }
+
+        #hidden {
+            border: hidden $accent;
+        }
+
+        #hkey {
+            border: hkey $accent;
+        }
+
+        #inner {
+            border: inner $accent;
+        }
+
+        #outer {
+            border: outer $accent;
+        }
+
+        #round {
+            border: round $accent;
+        }
+
+        #solid {
+            border: solid $accent;
+        }
+
+        #tall {
+            border: tall $accent;
+        }
+
+        #thick {
+            border: thick $accent;
+        }
+
+        #vkey {
+            border: vkey $accent;
+        }
+
+        #wide {
+            border: wide $accent;
+        }
+
+        Grid {
+            grid-size: 3 5;
+            align: center middle;
+            grid-gutter: 1 2;
+        }
+
+        Label {
+            width: 20;
+            height: 3;
+            content-align: center middle;
+        }
+        """
+
+        def compose(self):
+            yield Grid(
+                Label("ascii", id="ascii"),
+                Label("panel", id="panel"),
+                Label("dashed", id="dashed"),
+                Label("double", id="double"),
+                Label("heavy", id="heavy"),
+                Label("hidden/none/blank", id="hidden"),
+                Label("hkey", id="hkey"),
+                Label("inner", id="inner"),
+                Label("outer", id="outer"),
+                Label("round", id="round"),
+                Label("solid", id="solid"),
+                Label("tall", id="tall"),
+                Label("thick", id="thick"),
+                Label("vkey", id="vkey"),
+                Label("wide", id="wide"),
+            )
+
+    app = AllBordersApp()
+    app.run()
diff --git a/src/textual_paint/paint.py b/src/textual_paint/paint.py
index e0b1398..6f6bbbb 100755
--- a/src/textual_paint/paint.py
+++ b/src/textual_paint/paint.py
@@ -5518,234 +5518,8 @@ Columns: {len(palette) // 2}
 if args.ascii_only:
     args.ascii_only_icons = True
 
-    from textual._border import BORDER_CHARS, BORDER_LOCATIONS
-
-    # replace all with ascii border style
-    for key in BORDER_CHARS:
-        BORDER_CHARS[key] = (
-            ("+", "-", "+"),
-            ("|", " ", "|"),
-            ("+", "-", "+"),
-        )
-
-    # BORDER_CHARS[""] = (
-    #     (" ", " ", " "),
-    #     (" ", " ", " "),
-    #     (" ", " ", " "),
-    # )
-    # # was originally: (
-    # #     (" ", " ", " "),
-    # #     (" ", " ", " "),
-    # #     (" ", " ", " "),
-    # # )
-
-    # BORDER_CHARS["ascii"] = (
-    #     ("+", "-", "+"),
-    #     ("|", " ", "|"),
-    #     ("+", "-", "+"),
-    # )
-    # # was originally: (
-    # #     ("+", "-", "+"),
-    # #     ("|", " ", "|"),
-    # #     ("+", "-", "+"),
-    # # )
-
-    # BORDER_CHARS["none"] = (
-    #     (" ", " ", " "),
-    #     (" ", " ", " "),
-    #     (" ", " ", " "),
-    # )
-    # # was originally: (
-    # #     (" ", " ", " "),
-    # #     (" ", " ", " "),
-    # #     (" ", " ", " "),
-    # # )
-
-    # BORDER_CHARS["hidden"] = (
-    #     (" ", " ", " "),
-    #     (" ", " ", " "),
-    #     (" ", " ", " "),
-    # )
-    # # was originally: (
-    # #     (" ", " ", " "),
-    # #     (" ", " ", " "),
-    # #     (" ", " ", " "),
-    # # )
-
-    # BORDER_CHARS["blank"] = (
-    #     (" ", " ", " "),
-    #     (" ", " ", " "),
-    #     (" ", " ", " "),
-    # )
-    # # was originally: (
-    # #     (" ", " ", " "),
-    # #     (" ", " ", " "),
-    # #     (" ", " ", " "),
-    # # )
-
-    BORDER_CHARS["round"] = (
-        (".", "-", "."),
-        ("|", " ", "|"),
-        ("'", "-", "'"),
-    )
-    # was originally: (
-    #     ("╭", "─", "╮"),
-    #     ("│", " ", "│"),
-    #     ("╰", "─", "╯"),
-    # )
-
-    # This is actually supported in old terminals, but it's not technically ASCII...
-    # BORDER_CHARS["solid"] = (
-    #     ("┌", "─", "┐"),
-    #     ("│", " ", "│"),
-    #     ("└", "─", "┘"),
-    # )
-    # # was originally: (
-    # #     ("┌", "─", "┐"),
-    # #     ("│", " ", "│"),
-    # #     ("└", "─", "┘"),
-    # # )
-
-    BORDER_CHARS["double"] = (
-        ("#", "=", "#"),
-        ("H", " ", "H"),
-        ("#", "=", "#"),
-    )
-    # was originally: (
-    #     ("╔", "═", "╗"),
-    #     ("║", " ", "║"),
-    #     ("╚", "═", "╝"),
-    # )
-
-    BORDER_CHARS["dashed"] = (
-        (":", '"', ":"),
-        (":", " ", ":"),
-        ("'", '"', "'"),
-    )
-    # was originally: (
-    #     ("┏", "╍", "┓"),
-    #     ("╏", " ", "╏"),
-    #     ("┗", "╍", "┛"),
-    # )
-
-    # BORDER_CHARS["heavy"] = (
-    #     ("┏", "━", "┓"),
-    #     ("┃", " ", "┃"),
-    #     ("┗", "━", "┛"),
-    # )
-    # # was originally: (
-    # #     ("┏", "━", "┓"),
-    # #     ("┃", " ", "┃"),
-    # #     ("┗", "━", "┛"),
-    # # )
-
-    # BORDER_CHARS["inner"] = (
-    #     ("▗", "▄", "▖"),
-    #     ("▐", " ", "▌"),
-    #     ("▝", "▀", "▘"),
-    # )
-    # # was originally: (
-    # #     ("▗", "▄", "▖"),
-    # #     ("▐", " ", "▌"),
-    # #     ("▝", "▀", "▘"),
-    # # )
-
-    # BORDER_CHARS["outer"] = (
-    #     ("▛", "▀", "▜"),
-    #     ("▌", " ", "▐"),
-    #     ("▙", "▄", "▟"),
-    # )
-    # # was originally: (
-    # #     ("▛", "▀", "▜"),
-    # #     ("▌", " ", "▐"),
-    # #     ("▙", "▄", "▟"),
-    # # )
-
-    # BORDER_CHARS["thick"] = (
-    #     ("█", "▀", "█"),
-    #     ("█", " ", "█"),
-    #     ("█", "▄", "█"),
-    # )
-    # # was originally: (
-    # #     ("█", "▀", "█"),
-    # #     ("█", " ", "█"),
-    # #     ("█", "▄", "█"),
-    # # )
-
-    BORDER_CHARS["hkey"] = (
-        (" ", " ", " "),
-        (" ", " ", " "),
-        ("_", "_", "_"),
-    )
-    # was originally: (
-    #     ("▔", "▔", "▔"),
-    #     (" ", " ", " "),
-    #     ("▁", "▁", "▁"),
-    # )
-
-    BORDER_CHARS["vkey"] = (
-        ("[", " ", "]"),
-        ("[", " ", "]"),
-        ("[", " ", "]"),
-    )
-    # was originally: (
-    #     ("▏", " ", "▕"),
-    #     ("▏", " ", "▕"),
-    #     ("▏", " ", "▕"),
-    # )
-
-    BORDER_CHARS["tall"] = (
-        ("[", " ", "]"),
-        ("[", " ", "]"),
-        ("[", "_", "]"),
-    )
-    # was originally: (
-    #     ("▊", "▔", "▎"),
-    #     ("▊", " ", "▎"),
-    #     ("▊", "▁", "▎"),
-    # )
-
-    # BORDER_CHARS["panel"] = (
-    #     ("▊", "█", "▎"),
-    #     ("▊", " ", "▎"),
-    #     ("▊", "▁", "▎"),
-    # )
-    # # was originally: (
-    # #     ("▊", "█", "▎"),
-    # #     ("▊", " ", "▎"),
-    # #     ("▊", "▁", "▎"),
-    # # )
-
-    BORDER_CHARS["wide"] = (
-        ("_", "_", "_"),
-        ("[", " ", "]"),
-        (" ", " ", " "),
-    )
-    # was originally: (
-    #     ("▁", "▁", "▁"),
-    #     ("▎", " ", "▊"),
-    #     ("▔", "▔", "▔"),
-    # )
-
-    # Prevent inverse colors
-    for key in BORDER_LOCATIONS:
-        BORDER_LOCATIONS[key] = tuple(
-            tuple(value % 2 for value in row)
-            for row in BORDER_LOCATIONS[key]
-        )
-    # Prevent imbalanced borders
-    zeros = (
-        (0, 0, 0),
-        (0, 0, 0),
-        (0, 0, 0),
-    )
-    BORDER_LOCATIONS["panel"] = zeros
-    BORDER_LOCATIONS["tall"] = zeros
-    BORDER_LOCATIONS["wide"] = (
-        (1, 1, 1),
-        (0, 1, 0),
-        (1, 1, 1),
-    )
+    from .ascii_borders import force_ascii_borders
+    force_ascii_borders()
 
     # Adjust icons
     WindowTitleBar.MINIMIZE_ICON = "_"  # was originally: "🗕"