image_base = ../rock50/
bg.jpg overlay= layer_type1_20260718_075301.png, fg.png, layer_track_20260718_075301.png, layer_hail_20260718_075301.png, layer_warn_20260718_075301.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20260718_075717.png, fg.png, layer_track_20260718_075717.png, layer_hail_20260718_075717.png, layer_warn_20260718_075717.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20260718_080140.png, fg.png, layer_track_20260718_080140.png, layer_hail_20260718_080140.png, layer_warn_20260718_080140.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20260718_081019.png, fg.png, layer_track_20260718_081019.png, layer_hail_20260718_081019.png, layer_warn_20260718_081019.png, ../legends/legend_warnings_type.png
bg.jpg overlay= layer_type1_20260718_081436.png, fg.png, layer_track_20260718_081436.png, layer_hail_20260718_081436.png, layer_warn_20260718_081436.png, ../legends/legend_warnings_type.png