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

beefy_player/widgets/header.py

@@ -10,7 +10,7 @@ from rich.text import Text
 from textual.widget import Widget
 
 from .common import (
-    SPECTRUM_STOPS,
+    active_stops,
     clock_time,
     date_label,
     gradient,
@@ -22,7 +22,13 @@ if TYPE_CHECKING:
     from ..app import BeefyPlayerApp
 
 
-def _hero_line(markup: str, index: int, width: int, gradient_fill: bool) -> Text:
+def _hero_line(
+    markup: str,
+    index: int,
+    width: int,
+    gradient_fill: bool,
+    stops: tuple[str, ...],
+) -> Text:
     """One row of the hero: spectrum-painted glyphs, or the art's own colours."""
     if not gradient_fill:
         line = Text.from_markup(markup)
@@ -32,7 +38,7 @@ def _hero_line(markup: str, index: int, width: int, gradient_fill: bool) -> Text
     line = Text(no_wrap=True)
     for column, char in enumerate(markup):
         position = (column / max(1, width - 1) + index * 0.055) % 1.0
-        line.append(char, style=f"bold {gradient(SPECTRUM_STOPS, position)}")
+        line.append(char, style=f"bold {gradient(stops, position)}")
     return line
 
 
@@ -45,6 +51,7 @@ class HeaderBar(Widget):
         hero = tuple(getattr(provider, "hero", ()) or ())
         hero_lines = tuple(getattr(provider, "hero_lines", ()) or ())
         gradient_fill = bool(getattr(provider, "hero_gradient", False))
+        stops = active_stops(app)
 
         width = max(24, self.size.width)
         height = max(1, self.size.height)
@@ -73,7 +80,7 @@ class HeaderBar(Widget):
 
         lines: list[Text] = []
         for index, row in enumerate(hero):
-            line = _hero_line(row, index, hero_width, gradient_fill)
+            line = _hero_line(row, index, hero_width, gradient_fill, stops)
             # Art rows are right-trimmed, so a row ending in a blank cell is a
             # column short; pad it back or the caption and clock drift left.
             short = hero_width - cell_len(line.plain)