diff --git a/zxlive/common.py b/zxlive/common.py
index 2cb0465..b821f29 100644
--- a/zxlive/common.py
+++ b/zxlive/common.py
@@ -20,6 +20,11 @@
 def get_data(path: str) -> str:
     return os.path.join(os.environ.get("_MEIPASS", _ROOT), path)
 
+def set_settings_value(arg: str, val: T, _type: Type[T], settings: QSettings | None = None) -> None:
+    _settings = settings or QSettings("zxlive", "zxlive")
+    if not isinstance(val, _type):
+        raise ValueError(f"Unexpected type for {arg}: expected {_type}, got {type(val)}")
+    _settings.setValue(arg, val)
 
 def get_settings_value(arg: str, _type: Type[T], default: T | None = None, settings: QSettings | None = None) -> T:
     _settings = settings or QSettings("zxlive", "zxlive")
diff --git a/zxlive/graphview.py b/zxlive/graphview.py
index c8246a0..1fbb7a5 100644
--- a/zxlive/graphview.py
+++ b/zxlive/graphview.py
@@ -28,7 +28,8 @@
 from dataclasses import dataclass
 
 from . import animations as anims
-from .common import  GraphT, SCALE, OFFSET_X, OFFSET_Y, MIN_ZOOM, MAX_ZOOM
+from .common import (GraphT, SCALE, OFFSET_X, OFFSET_Y, MIN_ZOOM, MAX_ZOOM,
+                     get_settings_value, set_settings_value)
 from .graphscene import GraphScene, VItem, EItem, EditGraphScene
 from .settings import display_setting
 from .vitem import PHASE_ITEM_Z
@@ -99,10 +100,17 @@ def __init__(self, graph_scene: GraphScene) -> None:
 
         self.centerOn(OFFSET_X,OFFSET_Y)
 
-        self.sparkle_mode = False
         self.sparkles = Sparkles(self.graph_scene)
         QShortcut(QKeySequence("Ctrl+Shift+Alt+S"), self).activated.connect(self._toggle_sparkles)
 
+    @property
+    def sparkle_mode(self) -> bool:
+        return get_settings_value("sparkle-mode", bool)
+
+    @sparkle_mode.setter
+    def sparkle_mode(self, value: bool) -> None:
+        set_settings_value("sparkle-mode", value, bool)
+
     def _toggle_sparkles(self) -> None:
         self.sparkle_mode = not self.sparkle_mode
 
diff --git a/zxlive/mainwindow.py b/zxlive/mainwindow.py
index de7b5af..1a6b0a3 100644
--- a/zxlive/mainwindow.py
+++ b/zxlive/mainwindow.py
@@ -177,7 +177,6 @@ def __init__(self) -> None:
 
         self.effects = {e: load_sfx(e) for e in SFXEnum}
 
-        self.sfx_on = self.settings.value("sound-effects")
         QShortcut(QKeySequence("Ctrl+B"), self).activated.connect(self._toggle_sfx)
 
     def open_demo_graph(self) -> None:
@@ -588,6 +587,14 @@ def update_colors(self) -> None:
         if self.active_panel is not None:
             self.active_panel.update_colors()
 
+    @property
+    def sfx_on(self) -> bool:
+        return self.settings.value("sound-effects")
+
+    @sfx_on.setter
+    def sfx_on(self, value: bool) -> None:
+        self.settings.setValue("sound-effects", value)
+
     def play_sound(self, s: SFXEnum) -> None:
         if self.sfx_on:
             self.effects[s].play()
diff --git a/zxlive/rewrite_action.py b/zxlive/rewrite_action.py
index 4ca0c0d..5a245ee 100644
--- a/zxlive/rewrite_action.py
+++ b/zxlive/rewrite_action.py
@@ -44,7 +44,7 @@ class RewriteAction:
 
     @classmethod
     def from_rewrite_data(cls, d: RewriteData) -> RewriteAction:
-        if display_setting.PREVIEWS_SHOW and ('picture' in d or 'custom_rule' in d):
+        if display_setting.previews_show and ('picture' in d or 'custom_rule' in d):
             if 'custom_rule' in d:
                 # We will create a custom tooltip picture representing the custom rewrite
                 graph_scene_left = GraphScene()
diff --git a/zxlive/settings.py b/zxlive/settings.py
index ec0e2d5..549c995 100644
--- a/zxlive/settings.py
+++ b/zxlive/settings.py
@@ -35,6 +35,7 @@ class ColorScheme(TypedDict):
     "snap-granularity": '4',
     "input-circuit-format": 'openqasm',
     "previews-show": True,
+    "sparkle-mode": True,
     'sound-effects': False,
 }
 
@@ -186,7 +187,6 @@ def _get_synonyms(key: str, default: list[str]) -> list[str]:
 
 class DisplaySettings:
     SNAP_DIVISION = 4  # Should be an integer dividing SCALE
-    PREVIEWS_SHOW = True
 
     def __init__(self) -> None:
         self.colors = color_schemes[str(settings.value("color-scheme"))]
@@ -202,9 +202,14 @@ def update(self) -> None:
             get_settings_value("font/size", int)
         )
         self.SNAP = SCALE / self.SNAP_DIVISION
-        self.PREVIEWS_SHOW = get_settings_value("previews-show",bool)
-        self.PREVIEWS_SHOW = True
 
+    @property
+    def previews_show(self) -> bool:
+        return get_settings_value("previews-show", bool)
+
+    @previews_show.setter
+    def previews_show(self, value: bool) -> None:
+        settings.setValue("previews-show", value)
 
 # Initialise settings
 settings = QSettings("zxlive", "zxlive")
diff --git a/zxlive/settings_dialog.py b/zxlive/settings_dialog.py
index 14ca83a..c320600 100644
--- a/zxlive/settings_dialog.py
+++ b/zxlive/settings_dialog.py
@@ -79,6 +79,7 @@ class SettingsData(TypedDict):
     {"id": "snap-granularity", "label": "Snap-to-grid granularity", "type": FormInputType.Combo, "data": snap_to_grid_data},
     {"id": "input-circuit-format", "label": "Input Circuit as", "type": FormInputType.Combo, "data": input_circuit_formats},
     {"id": "previews-show", "label": "Show rewrite previews","type": FormInputType.Bool},
+    {"id": "sparkle-mode", "label": "Sparkle Mode", "type": FormInputType.Bool},
     {"id": "sound-effects", "label": "Sound Effects", "type": FormInputType.Bool},
 ]