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diff --git a/source/app/Options.mc b/source/app/Options.mc
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+// Author:  cirakg & claude ai
+// Summary: The user's options (README 10.2, Options group), read from app properties with safe defaults.
+//
+// The properties are defined in resources/settings/properties.xml (reading
+// an undefined one stops the app with an uncatchable system error); M7 adds
+// the phone form. A value of the wrong type or out of range falls back to
+// the default below.
+
+import Toybox.Application;
+import Toybox.Lang;
+
+class Options {
+
+    static const CODE_NORMAL = 0;
+    static const CODE_LARGE = 1;
+    static const CODE_HUGE = 2;
+
+    static const THEME_DARK = 0;
+    static const THEME_LIGHT = 1;
+
+    // optAutoLock list values, in ms: Immediately, 15 s, 30 s, 1 min, 2 min, 5 min.
+    static const AUTO_LOCK_CHOICES = [0, 15000, 30000, 60000, 120000, 300000];
+    static const AUTO_LOCK_DEFAULT = 3;
+    static const MAX_TIME_OFFSET_S = 120;
+
+    var autoLockMs as Number = 60000;
+    var eraseAfterFailures as Boolean = false;
+    var timeOffset as Number = 0;
+    var codeSize as Number = CODE_LARGE;
+    var theme as Number = THEME_DARK;
+    var showGroups as Boolean = true;
+    var encryptNames as Boolean = false;
+    var glanceCode as Boolean = false;
+    var fullBrightness as Boolean = true;
+
+    function initialize() {
+    }
+
+    // Read every option; anything missing or invalid keeps its default.
+    function load() as Void {
+        var autoLock = choice("optAutoLock", AUTO_LOCK_DEFAULT, AUTO_LOCK_CHOICES.size() - 1);
+        autoLockMs = AUTO_LOCK_CHOICES[autoLock] as Number;
+        eraseAfterFailures = flag("optWipe", false);
+        var offset = number("optTimeOffset");
+        timeOffset = (offset != null && offset >= -MAX_TIME_OFFSET_S && offset <= MAX_TIME_OFFSET_S) ? offset : 0;
+        codeSize = choice("optCodeSize", CODE_LARGE, CODE_HUGE);
+        theme = choice("optTheme", THEME_DARK, THEME_LIGHT);
+        showGroups = flag("optGroups", true);
+        encryptNames = flag("optEncryptNames", false);
+        glanceCode = flag("optGlanceCode", false);
+        fullBrightness = flag("optBrightness", true);
+    }
+
+    // A property, or null when it doesn't exist (before M7) or can't be read.
+    private function raw(key as String) as Application.Properties.ValueType or Null {
+        try {
+            return Application.Properties.getValue(key);
+        } catch (e instanceof Lang.Exception) {
+            return null;
+        }
+    }
+
+    private function number(key as String) as Number? {
+        var v = raw(key);
+        return v instanceof Number ? v : null;
+    }
+
+    // A list index in 0..max, or the default.
+    private function choice(key as String, defaultValue as Number, max as Number) as Number {
+        var v = number(key);
+        return (v != null && v >= 0 && v <= max) ? v : defaultValue;
+    }
+
+    private function flag(key as String, defaultValue as Boolean) as Boolean {
+        var v = raw(key);
+        return v instanceof Boolean ? v : defaultValue;
+    }
+}