feat(palette): sixteen ANSI colour ladders, cycled with c

tests/test_app.py

@@ -9,6 +9,7 @@ import pytest
 from beefy_player import config
 from beefy_player.app import BeefyPlayerApp
 from beefy_player.models import Song
+from beefy_player.widgets.art import ArtPane
 from beefy_player.widgets.help import HelpScreen
 from beefy_player.widgets.stage import StagePanel
 from beefy_player.widgets.station_list import StationList
@@ -259,3 +260,53 @@ async def test_media_session_commands_drive_the_app() -> None:
         app.media_actions.put("volume:25")
         await pilot.pause(0.2)
         assert app.volume == 25
+
+
+@pytest.mark.asyncio
+async def test_menus_take_the_inline_artwork_down_and_put_it_back(monkeypatch) -> None:
+    """Terminal images sit over a modal unless the image is deleted first."""
+    calls: list[str] = []
+    monkeypatch.setattr(ArtPane, "suspend", lambda self: calls.append("suspend"))
+    monkeypatch.setattr(ArtPane, "resume", lambda self: calls.append("resume"))
+
+    app = BeefyPlayerApp(autoplay=False, offline=True, audio=False)
+    async with app.run_test(size=(100, 30)) as pilot:
+        await pilot.pause()
+
+        await pilot.press("question_mark")
+        await pilot.pause()
+        assert calls == ["suspend"]
+        await pilot.press("x")
+        await pilot.pause()
+        assert calls == ["suspend", "resume"]
+
+        await pilot.press("p")
+        await pilot.pause()
+        assert calls[-1] == "suspend"
+        await pilot.press("escape")
+        await pilot.pause()
+        assert calls[-1] == "resume"
+
+
+@pytest.mark.asyncio
+async def test_the_mosaic_gives_way_to_a_real_image(monkeypatch) -> None:
+    """The pattern must not peek out around a letterboxed picture."""
+    from beefy_player.widgets import art as art_module
+
+    monkeypatch.setattr(art_module.artwork, "supported", lambda: True)
+
+    app = BeefyPlayerApp(autoplay=False, offline=True, audio=False)
+    async with app.run_test(size=(110, 34)) as pilot:
+        await pilot.pause()
+        pane = app.query_one(ArtPane)
+        assert pane.display, "the artwork pane should be on screen at this size"
+
+        app.artwork_bytes = None
+        patterned = [line.plain for line in pane.render().renderables]
+        assert patterned and any(line.strip() for line in patterned)
+
+        app.artwork_bytes = b"pretend this is a png"
+        blank = [line.plain for line in pane.render().renderables]
+        assert len(blank) == len(patterned)
+        assert len(blank[0]) == len(patterned[0])
+        assert all(not line.strip() for line in blank)