Update radar image to have more accurate locations

battlewords/ui.py

@@ -551,6 +551,8 @@ def _render_radar(puzzle: Puzzle, size: int, r_max: float = 0.8, max_frames: int
     # Use per-puzzle scope image keyed by puzzle.uid
     imgscope = get_scope_image(uid=puzzle.uid, size=scope_size, bgcolor=bgcolor, scope_color=scope_color)
     fig, ax = plt.subplots(figsize=(scope_size, scope_size))
+    fig.subplots_adjust(left=0, right=0.9, top=0.9, bottom=0)
+    fig.patch.set_alpha(0.0)
     ax.set_position([0.02, 0.02, 0.98, 0.98])
     ax.set_xlim(min_x, max_x)
     ax.set_ylim(max_y, min_y)  # Inverted for grid coordinates