image_base = ../balt50/
bg.jpg overlay= layer_type1_20211002_041658.png, fg.png, layer_track_20211002_041658.png, layer_hail_20211002_041658.png, layer_warn_20211002_041658.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20211002_042406.png, fg.png, layer_track_20211002_042406.png, layer_hail_20211002_042406.png, layer_warn_20211002_042406.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20211002_043113.png, fg.png, layer_track_20211002_043113.png, layer_hail_20211002_043113.png, layer_warn_20211002_043113.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20211002_043821.png, fg.png, layer_track_20211002_043821.png, layer_hail_20211002_043821.png, layer_warn_20211002_043821.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20211002_044528.png, fg.png, layer_track_20211002_043821.png, layer_hail_20211002_043821.png, layer_warn_20211002_044528.png, ../legends/legend_warnings_type.png