black sea map

[GeoTuxMan]

I try to show currents from Black Sea on a map with streamlines (with leaflet-velocity). But all streamlines are same color and the map looks very bad. The map is here: https://syroco.rmri.ro/earth/index.html I keep the original layer (Ocean Current -Great Barrier Reef) , to see the diference between layers. Also, I try to use your version (netcdf-vis), but the outpu it's the same(the streamlines are very little) I look forward to any suggestion, idea.