diff --git a/css/custom.css b/css/custom.css
index a9be45d6..f9dfbc11 100644
--- a/css/custom.css
+++ b/css/custom.css
@@ -225,3 +225,18 @@ body[data-style="dark"] .card a {
 body[data-style="dark"] .card a:hover {
   color: #ccc !important;
 }
+
+body[data-style="dark"] .alert-danger {
+  background-color: #6d2126;
+  border-color: #5e1b20;
+  color: #dfc4c7;
+}
+
+body[data-style="dark"] .alert-danger svg {
+  fill: #dfc4c7;
+}
+
+.alert-danger svg {
+  fill: #6d2126;
+  margin-right: 5px;
+}
diff --git a/js/view.js b/js/view.js
index 29e91b3a..c2b29f1b 100644
--- a/js/view.js
+++ b/js/view.js
@@ -9,7 +9,7 @@ changeTheme(localStorage.getItem('theme'))
 function changeTheme(theme) {
   console.log(theme);
   if (theme === null) {
-    theme = 'light';
+    theme = 'dark';
   }
   $('body').attr('data-style', theme);
   localStorage.setItem('theme', theme);
@@ -21,6 +21,9 @@ function updateView() {
     $('#structure').removeClass('d-none').html('');
     $('#descriptionSpan').attr('data-i18n', structure.description);
     $('title').attr('data-i18n', structure.title);
+    if (structure.id === 'worldgen') {
+      $('#structure').append('<div class="alert alert-danger" role="alert"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="16" height="16"><path fill-rule="evenodd" d="M8.893 1.5c-.183-.31-.52-.5-.887-.5s-.703.19-.886.5L.138 13.499a.98.98 0 000 1.001c.193.31.53.501.886.501h13.964c.367 0 .704-.19.877-.5a1.03 1.03 0 00.01-1.002L8.893 1.5zm.133 11.497H6.987v-2.003h2.039v2.003zm0-3.004H6.987V5.987h2.039v4.006z"></path></svg><span data-i18n="worldgen.warning"></span></div>')
+    }
     $('#structure').append($component);
     if (structure.id === 'worldgen') {
       $('#versionLabel').addClass('d-none')
diff --git a/locales/en.json b/locales/en.json
index 09890cdf..2e56c9f7 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -39,6 +39,11 @@
     "biome_source.preset": "Biomes Preset",
     "biome_source.seed": "Biomes Seed",
     "biome_source.type": "Biome Source",
+    "biome_source.type.fixed": "Fixed",
+    "biome_source.type.multi_noise": "Multi Noise",
+    "biome_source.type.checkerboard": "Checkerboard",
+    "biome_source.type.vanilla_layered": "Vanilla Layered",
+    "biome_source.type.the_end": "The End",
     "child_add": "Add Child",
     "condition.block": "Block",
     "condition.block_state": "Block State",
@@ -331,6 +336,9 @@
     "gamemode.spectator": "Spectator",
     "gamemode.survival": "Survival",
     "generator.type": "Type",
+    "generator.type.noise": "Default",
+    "generator.type.flat": "Superflat",
+    "generator.type.debug": "Debug World",
     "generator.seed": "Dimension Seed",
     "generator.settings": "Generator Settings",
     "generator.settings.bedrock_roof_position": "Bedrock Roof Position",
@@ -357,6 +365,9 @@
     "generator.settings.noise.top_slide.target": "Top Slide Target",
     "generator.settings.noise.top_slide.size": "Top Slide Size",
     "generator.settings.noise.top_slide.offset": "Top Slide Offset",
+    "generator.settings.presets.overworld": "Overworld",
+    "generator.settings.presets.nether": "Nether",
+    "generator.settings.presets.end": "End",
     "generator.settings.structures": "Structures",
     "generator.settings.structures_add": "Add Structure",
     "generator.settings.structures_remove": "Remove Structure",
@@ -426,6 +437,7 @@
     "placeholder.fluid_state": "A fluid state key",
     "placeholder.objective": "An scoreboard objective",
     "placeholder.recipe": "An recipe ID",
+    "placeholder.structure": "A structure ID",
     "pool.bonus_rolls": "Bonus Rolls",
     "pool.rolls": "Rolls",
     "pool_add": "Add Pool",
@@ -548,5 +560,6 @@
     "unset": "Unset",
     "world.generate_features": "Generate Features",
     "world.bonus_chest": "Spawn Bonus Chest",
-    "world.seed": "Seed"
+    "world.seed": "Seed",
+    "worldgen.warning": "This feature is highly experimental and unstable. It can change in future versions. Expect the game to crash when creating worlds."
 }
diff --git a/schemas/worldgen.json b/schemas/worldgen.json
index fbd18ad1..4e9d3048 100644
--- a/schemas/worldgen.json
+++ b/schemas/worldgen.json
@@ -89,6 +89,7 @@
             {
               "id": "type",
               "translate": "generator.type",
+              "translateValue": "generator.type",
               "type": "enum",
               "values": [
                 "minecraft:noise",
@@ -109,6 +110,7 @@
                 {
                   "id": "type",
                   "translate": "biome_source.type",
+                  "translateValue": "biome_source.type",
                   "type": "enum",
                   "values": [
                     "minecraft:fixed",
@@ -150,7 +152,7 @@
             {
               "id": "settings",
               "translate": "generator.settings",
-              "translateValue": "dimension",
+              "translateValue": "generator.settings.presets",
               "type": "object",
               "color": "dark",
               "collapse": true,