{
  "HFO":  {"name": "Heavy Fuel Oil",        "density_kg_m3": 991,  "viscosity_cSt": 380,  "color": "#3d2b1f"},
  "MGO":  {"name": "Marine Gas Oil",        "density_kg_m3": 890,  "viscosity_cSt": 6,    "color": "#c8a96e"},
  "MDO":  {"name": "Marine Diesel Oil",     "density_kg_m3": 870,  "viscosity_cSt": 11,   "color": "#b8953a"},
  "LSFO": {"name": "Low Sulphur Fuel Oil",  "density_kg_m3": 985,  "viscosity_cSt": 180,  "color": "#4a3728"},
  "LO":   {"name": "Lubricating Oil",       "density_kg_m3": 920,  "viscosity_cSt": 100,  "color": "#8b6914"},
  "HO":   {"name": "Hydraulic Oil",         "density_kg_m3": 875,  "viscosity_cSt": 46,   "color": "#d4a017"},
  "FW":   {"name": "Fresh Water",           "density_kg_m3": 1000, "viscosity_cSt": 1.0,  "color": "#4fc3f7"},
  "SW":   {"name": "Sea Water (ballast)",   "density_kg_m3": 1025, "viscosity_cSt": 1.05, "color": "#0277bd"},
  "DW":   {"name": "Distilled Water",       "density_kg_m3": 999,  "viscosity_cSt": 1.0,  "color": "#b3e5fc"},
  "SLP":  {"name": "Slop / Bilge",          "density_kg_m3": 1010, "viscosity_cSt": 5,    "color": "#5d4037"},
  "SEW":  {"name": "Sewage",                "density_kg_m3": 1010, "viscosity_cSt": 3,    "color": "#6d4c41"},
  "URE":  {"name": "Urea 40% (SCR/AdBlue)", "density_kg_m3": 1090, "viscosity_cSt": 1.4,  "color": "#e1f5fe"},
  "LNG":  {"name": "LNG (gas natural lic.)", "density_kg_m3": 450,  "viscosity_cSt": 0.2,  "color": "#e8f5e9"},
  "MeOH": {"name": "Methanol",              "density_kg_m3": 791,  "viscosity_cSt": 0.74, "color": "#f3e5f5"},
  "NH3":  {"name": "Ammonia (liquid)",      "density_kg_m3": 682,  "viscosity_cSt": 0.27, "color": "#fff9c4"}
}