fix: Crash on exit

Fixes #854

lib/external/libromfs

@@ -1 +1 @@
-Subproject commit 59d8ceccb0b668e16a5d2b25c457514c9e8c1493
+Subproject commit beec45afc942209cc34d30f99eac42b2bb04aa79

lib/libimhex/include/hex/api/theme_manager.hpp

@@ -24,6 +24,8 @@ namespace hex::api {
         static const std::string &getThemeImagePostfix();
 
         static std::optional<ImColor> parseColorString(const std::string &colorString);
+
+        static void reset();
     private:
         ThemeManager() = default;
 

lib/libimhex/source/api/theme_manager.cpp

@@ -115,4 +115,11 @@ namespace hex::api {
         return themeNames;
     }
 
+    void ThemeManager::reset() {
+        ThemeManager::s_themes.clear();
+        ThemeManager::s_styleHandlers.clear();
+        ThemeManager::s_themeHandlers.clear();
+        ThemeManager::s_imagePostfix.clear();
+    }
+
 }

main/source/init/tasks.cpp

@@ -6,6 +6,7 @@
 
 #include <hex/api/content_registry.hpp>
 #include <hex/api/project_file_manager.hpp>
+#include <hex/api/theme_manager.hpp>
 #include <hex/ui/view.hpp>
 #include <hex/helpers/net.hpp>
 #include <hex/helpers/fs.hpp>
@@ -227,6 +228,8 @@ namespace hex::init {
         ContentRegistry::FileHandler::getEntries().clear();
         ContentRegistry::Hashes::impl::getHashes().clear();
 
+        api::ThemeManager::reset();
+
         {
             auto &visualizers = ContentRegistry::HexEditor::impl::getVisualizers();
             for (auto &[name, visualizer] : visualizers)