image_base = ../rock20/
bg.jpg overlay= layer_type1_20250429_003642.png, fg.png, layer_strike_20250429_003642.png, layer_track_20250429_003642.png, layer_hail_20250429_003642.png, layer_warn_20250429_003642.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20250429_004344.png, fg.png, layer_strike_20250429_004344.png, layer_track_20250429_004344.png, layer_hail_20250429_004344.png, layer_warn_20250429_004344.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20250429_005046.png, fg.png, layer_strike_20250429_005046.png, layer_track_20250429_005046.png, layer_hail_20250429_005046.png, layer_warn_20250429_005046.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20250429_005748.png, fg.png, layer_strike_20250429_005748.png, layer_track_20250429_005748.png, layer_hail_20250429_005748.png, layer_warn_20250429_005748.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20250429_010444.png, fg.png, layer_strike_20250429_010444.png, layer_track_20250429_010444.png, layer_hail_20250429_010444.png, layer_warn_20250429_010444.png, ../legends/legend_warnings_type.png