Fixed icy_draw crash.

crates/icy_draw/src/main.rs

@@ -124,6 +124,7 @@ fn main() {
         eprintln!("Failed to create log file");
     }
 
+    unsafe { SETTINGS.character_sets = CharacterSets::default(); }
     if let Ok(settings_file) = Settings::get_settings_file() {
         if settings_file.exists() {
             match Settings::load(&settings_file) {

crates/icy_draw/src/ui/settings.rs

@@ -98,11 +98,17 @@ impl KeyBindings {
     }
 }
 
-#[derive(Default, Clone, Serialize, Deserialize, Debug)]
+#[derive(Clone, Serialize, Deserialize, Debug)]
 pub struct CharacterSets {
     pub character_sets: Vec<CharSetMapping>,
 }
 
+impl Default for CharacterSets {
+    fn default() -> Self {
+        Self { character_sets: vec![CharSetMapping::default()] }
+    }
+}
+
 impl CharacterSets {
     pub fn get_character_sets_file() -> TerminalResult<PathBuf> {
         if let Some(proj_dirs) = ProjectDirs::from("com", "GitHub", "icy_draw") {
@@ -281,7 +287,7 @@ impl Settings {
 
         // Read the JSON contents of the file as an instance of `User`.
         let mut result: Settings = serde_json::from_reader(reader)?;
-
+        result.character_sets = CharacterSets::default();
         if let Ok(settings_file) = CharacterSets::get_character_sets_file() {
             if settings_file.exists() {
                 if let Ok(character_sets) = CharacterSets::load(&settings_file) {