diff --git a/src/config/client_config.js b/src/config/client_config.js
index 3bab8d2..1803d31 100644
--- a/src/config/client_config.js
+++ b/src/config/client_config.js
@@ -38,13 +38,13 @@ export const tileLayer = new CustomTileLayer("", {
 
 export const altitudeColours = [
     [50, "#aaaaaa"],
-    [100, "#aaaa00"],
-    [150, "#00aa00"],
-    [250, "#00aaaa"],
-    [350, "#0000aa"],
-    [450, "#aa00aa"],
-    [550, "#aa0000"],
-    [650, "#000000"],
+    [150, "#aaaa00"],
+    [250, "#00aa00"],
+    [350, "#00aaaa"],
+    [450, "#0000aa"],
+    [550, "#aa00aa"],
+    [650, "#aa0000"],
+    [999, "#000000"],
 ];
 
 export function world2map([x, y]) {
diff --git a/src/config/engine_config.yml b/src/config/engine_config.yml
index d6e08e8..6b1a226 100644
--- a/src/config/engine_config.yml
+++ b/src/config/engine_config.yml
@@ -1,6 +1,6 @@
 tick_duration: 1.0
 plane_spawn_chance: 0.1
-max_planes: 512
+max_planes: 256
 cruising_altitude_plus: 500
 cruising_altitude_minus: 600
 ns_before_ew: false