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examples/borders.py

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+from itertools import cycle
+
+from textual.app import App
+from textual.color import Color
+from textual.constants import BORDERS
+from textual.widgets import Static
+
+
+class BorderApp(App):
+    """Displays a pride flag."""
+
+    COLORS = ["red", "orange", "yellow", "green", "blue", "purple"]
+
+    def compose(self):
+        self.dark = True
+        for border, color in zip(BORDERS, cycle(self.COLORS)):
+            static = Static(f"border: {border} {color};")
+            static.styles.height = 7
+            static.styles.background = Color.parse(color).with_alpha(0.2)
+            static.styles.margin = (1, 2)
+            static.styles.border = (border, color)
+            static.styles.content_align = ("center", "middle")
+            yield static
+
+
+app = BorderApp()
+
+if __name__ == "__main__":
+    app.run()