diff --git a/src/Config.ts b/src/Config.ts
index 7d4d87d..42cc365 100644
--- a/src/Config.ts
+++ b/src/Config.ts
@@ -14,6 +14,8 @@ const defaults = {
     antRotationAngle: Math.PI / 30,
     brushRadius: 20,
     cameraZoom: 0,
+    gravityDirection: "down" as const,
+    viewMode: "side" as const,
     // per-channel pheromone params
     repellentFadeOutFactor: 0.0005,
     repellentBlurRadius: 0.05,