image_base = ../chatham20/
bg.jpg overlay= layer_type1_20260410_214646.png, fg.png, layer_strike_20260410_214646.png, layer_track_20260410_214646.png, layer_hail_20260410_214646.png, layer_warn_20260410_214646.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20260410_215343.png, fg.png, layer_strike_20260410_215343.png, layer_track_20260410_215343.png, layer_hail_20260410_215343.png, layer_warn_20260410_215343.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20260410_220047.png, fg.png, layer_strike_20260410_220047.png, layer_track_20260410_220047.png, layer_hail_20260410_220047.png, layer_warn_20260410_220047.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20260410_220739.png, fg.png, layer_strike_20260410_220739.png, layer_track_20260410_220739.png, layer_hail_20260410_220739.png, layer_warn_20260410_220739.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20260410_221436.png, fg.png, layer_strike_20260410_221436.png, layer_track_20260410_221436.png, layer_hail_20260410_221436.png, layer_warn_20260410_221436.png, ../legends/legend_warnings_type.png