const TOTAL_LEVELS = 20;
  // =========================
  // Per-level background themes
  // =========================
  const LEVEL_THEME = {
  1: "snow", //Snow 1 (yeti escape, find lightsaber)
  2: "snow", //Snow 2 Traverse snow base
  3: "snow", //Snow 3 escape to x-wing
  4: "jungle",  //space 1 
  5: "jungle", //Jungle 1 traverse Jungle
  6: "jungle", // Jungle 2 Traverse jungle
  7: "jungle", // Jungle 3 Speak with Yoda
  8: "jungle", //Space 2
  9: "station", //Station 1 entry
  10: "station", //Station 2 Climb
  11: "station", // Station 3 Vader fight
  12: "station", // Station 4 Vent Shaft
  13: "station", //Station 5 Return to ship
  14: "jungle", // Space 3
  15: "desert", //Desert 1 (Find new lightsaber)
  16: "desert", //Desert 2 Traverse Desert
  17: "desert", // Find Jabber's castle
  18: "rust", //Escape Rancor
  19: "desert", // Defeat Rollo Kett
  20: "desert", //END GAME
};