diff --git a/src/data/dynamic.cpp b/src/data/dynamic.cpp
index ca08472f..6f60b3f7 100644
--- a/src/data/dynamic.cpp
+++ b/src/data/dynamic.cpp
@@ -44,15 +44,27 @@ int64_t List::integer(size_t index) const {
 }
 
 Map* List::map(size_t index) const {
+    if (values[index]->type != valtype::map) {
+        throw std::runtime_error("type error");
+    }
     return values[index]->value.map;
 }
 
 List* List::list(size_t index) const {
+    if (values[index]->type != valtype::list) {
+        throw std::runtime_error("type error");
+    }
     return values[index]->value.list;
 }
 
 bool List::flag(size_t index) const {
-    return values[index]->value.boolean;
+    const auto& val = values[index];
+    switch (val->type) {
+        case valtype::integer: return val->value.integer;
+        case valtype::boolean: return val->value.boolean;
+        default:
+            throw std::runtime_error("type error");
+    }
 }
 
 List& List::put(std::string value) {
@@ -180,9 +192,14 @@ int64_t Map::getInt(std::string key, int64_t def) const {
 
 bool Map::getBool(std::string key, bool def) const {
     auto found = values.find(key);
-    if (found != values.end())
-        return found->second->value.boolean;
-    return def;
+    if (found == values.end())
+        return def;
+    auto& val = found->second;
+    switch (val->type) {
+        case valtype::integer: return val->value.integer;
+        case valtype::boolean: return val->value.boolean;
+        default: throw std::runtime_error("type error");
+    }
 }
 
 void Map::num(std::string key, double& dst) const {
@@ -232,9 +249,7 @@ List* Map::list(std::string key) const {
 }
 
 void Map::flag(std::string key, bool& dst) const {
-    auto found = values.find(key);
-    if (found != values.end())
-        dst = found->second->value.boolean;
+    dst = getBool(key, dst);
 }
 
 Map& Map::put(std::string key, uint value) {
diff --git a/src/data/dynamic.h b/src/data/dynamic.h
index eb4bdf1b..304111c4 100644
--- a/src/data/dynamic.h
+++ b/src/data/dynamic.h
@@ -22,7 +22,7 @@ namespace dynamic {
         std::string* str;
         double decimal;
         int64_t integer;
-        bool boolean;
+        uint64_t boolean;
     };
 
     class Value {
diff --git a/src/engine.cpp b/src/engine.cpp
index 32673e11..7d5df765 100644
--- a/src/engine.cpp
+++ b/src/engine.cpp
@@ -138,6 +138,7 @@ void Engine::loadContent() {
     auto resdir = paths->getResources();
     ContentBuilder contentBuilder;
     setup_definitions(&contentBuilder);
+    paths->setContentPacks(&contentPacks);
     
     std::vector<fs::path> resRoots;
     for (auto& pack : contentPacks) {
@@ -163,7 +164,7 @@ void Engine::loadContent() {
 	}
     assets->extend(*new_assets.get());
 
-    paths->setContentPacks(&contentPacks);
+
 }
 
 void Engine::loadWorldContent(const fs::path& folder) {
diff --git a/src/frontend/menu.cpp b/src/frontend/menu.cpp
index 40833a99..98e232e6 100644
--- a/src/frontend/menu.cpp
+++ b/src/frontend/menu.cpp
@@ -250,9 +250,11 @@ void create_main_menu_panel(Engine* engine, PagesControl* menu) {
 
 typedef std::function<void(const ContentPack& pack)> packconsumer;
 
+const int PACKS_PANEL_WIDTH = 550;
+
 std::shared_ptr<Panel> create_packs_panel(const std::vector<ContentPack>& packs, Engine* engine, bool backbutton, packconsumer callback) {
     auto assets = engine->getAssets();
-    auto panel = std::make_shared<Panel>(vec2(400, 200), vec4(5.0f));
+    auto panel = std::make_shared<Panel>(vec2(PACKS_PANEL_WIDTH, 200), vec4(5.0f));
     panel->color(vec4(1.0f, 1.0f, 1.0f, 0.07f));
     panel->maxLength(400);
     panel->scrollable(true);
@@ -266,7 +268,7 @@ std::shared_ptr<Panel> create_packs_panel(const std::vector<ContentPack>& packs,
         }
         auto idlabel = std::make_shared<Label>("["+pack.id+"]");
         idlabel->color(vec4(1, 1, 1, 0.5f));
-        packpanel->add(idlabel, vec2(360-idlabel->size().x, 2));
+        packpanel->add(idlabel, vec2(PACKS_PANEL_WIDTH-40-idlabel->size().x, 2));
 
         auto titlelabel = std::make_shared<Label>(pack.title);
         packpanel->add(titlelabel, vec2(78, 6));
@@ -284,7 +286,7 @@ std::shared_ptr<Panel> create_packs_panel(const std::vector<ContentPack>& packs,
         if (!pack.creator.empty()) {
             auto creatorlabel = std::make_shared<Label>("@"+pack.creator);
             creatorlabel->color(vec4(0.8f, 1.0f, 0.9f, 0.7f));
-            packpanel->add(creatorlabel, vec2(360-creatorlabel->size().x, 60));
+            packpanel->add(creatorlabel, vec2(PACKS_PANEL_WIDTH-40-creatorlabel->size().x, 60));
         }
 
         auto descriptionlabel = std::make_shared<Label>(pack.description);
@@ -304,7 +306,7 @@ std::shared_ptr<Panel> create_packs_panel(const std::vector<ContentPack>& packs,
 // TODO: refactor
 void create_content_panel(Engine* engine, PagesControl* menu) {
     auto paths = engine->getPaths();
-    auto mainPanel = create_page(engine, "content", 400, 0.0f, 5);
+    auto mainPanel = create_page(engine, "content", PACKS_PANEL_WIDTH, 0.0f, 5);
 
     std::vector<ContentPack> scanned;
     ContentPack::scan(engine->getPaths(), scanned);