Add NightLight, update README, format

Commons/Settings.qml

@@ -129,7 +129,7 @@ Singleton {
         widgets: JsonObject {
           property list<string> left: ["SystemMonitor", "ActiveWindow", "MediaMini"]
           property list<string> center: ["Workspace"]
-          property list<string> right: ["ScreenRecorderIndicator", "Tray", "NotificationHistory", "WiFi", "Bluetooth", "Battery", "Volume", "Brightness", "Clock", "SidePanelToggle"]
+          property list<string> right: ["ScreenRecorderIndicator", "Tray", "NotificationHistory", "WiFi", "Bluetooth", "Battery", "Volume", "Brightness", "NightLight", "Clock", "SidePanelToggle"]
         }
       }
 
@@ -256,6 +256,16 @@ Singleton {
         // External app theming (GTK & Qt)
         property bool themeApps: false
       }
+
+      // night light
+      property JsonObject nightLight: JsonObject {
+        property bool enabled: false
+        property real warmth: 0.0
+        property real intensity: 0.8
+        property string startTime: "20:00"
+        property string stopTime: "07:00"
+        property bool autoSchedule: false
+      }
     }
   }
 }

Modules/Bar/Widgets/NightLight.qml

@@ -0,0 +1,85 @@
+import QtQuick
+import Quickshell
+import qs.Commons
+import qs.Modules.SettingsPanel
+import qs.Services
+import qs.Widgets
+
+Item {
+  id: root
+
+  property ShellScreen screen
+  property real scaling: ScalingService.scale(screen)
+
+  implicitWidth: pill.width
+  implicitHeight: pill.height
+  visible: true
+
+  function getIcon() {
+    if (!NightLightService.enabled) {
+      return "light_mode"
+    }
+    return NightLightService.isActive ? "dark_mode" : "light_mode"
+  }
+
+  function getTooltipText() {
+    if (!NightLightService.enabled) {
+      return "Night Light: Disabled\nLeft click to open settings.\nRight click to enable."
+    }
+
+    var status = NightLightService.isActive ? "Active" : "Inactive (outside schedule)"
+    var warmth = Math.round(NightLightService.warmth * 10)
+    var schedule = NightLightService.autoSchedule ? `Schedule: ${NightLightService.startTime} - ${NightLightService.stopTime}` : "Manual mode"
+
+    return `Night Light: ${status}\nWarmth: ${warmth}/10\n${schedule}\nLeft click to open settings.\nRight click to toggle.`
+  }
+
+  NPill {
+    id: pill
+    icon: getIcon()
+    iconCircleColor: NightLightService.isActive ? Color.mSecondary : Color.mOnSurfaceVariant
+    collapsedIconColor: NightLightService.isActive ? Color.mOnSecondary : Color.mOnSurface
+    autoHide: false
+    text: NightLightService.enabled ? (NightLightService.isActive ? "ON" : "OFF") : "OFF"
+    tooltipText: getTooltipText()
+
+    onClicked: {
+      // Left click - open settings
+      var settingsPanel = PanelService.getPanel("settingsPanel")
+      settingsPanel.requestedTab = SettingsPanel.Tab.Display
+      settingsPanel.open(screen)
+    }
+
+    onRightClicked: {
+      // Right click - toggle night light
+      NightLightService.toggle()
+    }
+  }
+
+  // Update when service state changes
+  Connections {
+    target: NightLightService
+    function onEnabledChanged() {
+      pill.icon = getIcon()
+      pill.text = NightLightService.enabled ? (NightLightService.isActive ? "ON" : "OFF") : "OFF"
+      pill.tooltipText = getTooltipText()
+    }
+    function onIsActiveChanged() {
+      pill.icon = getIcon()
+      pill.text = NightLightService.enabled ? (NightLightService.isActive ? "ON" : "OFF") : "OFF"
+      pill.tooltipText = getTooltipText()
+    }
+    function onWarmthChanged() {
+      pill.tooltipText = getTooltipText()
+    }
+    function onStartTimeChanged() {
+      pill.tooltipText = getTooltipText()
+    }
+    function onStopTimeChanged() {
+      pill.tooltipText = getTooltipText()
+    }
+    function onAutoScheduleChanged() {
+      pill.tooltipText = getTooltipText()
+    }
+  }
+}

Modules/Launcher/Launcher.qml

@@ -49,8 +49,6 @@ NPanel {
       searchText = ""
       selectedIndex = 0
     }
-
-
   }
 
   onClosed: {

Modules/NightLight/NightLight.qml

@@ -0,0 +1,65 @@
+import QtQuick
+import Quickshell
+import Quickshell.Wayland
+import qs.Commons
+import qs.Services
+
+Variants {
+  model: Quickshell.screens
+
+  delegate: Loader {
+    required property ShellScreen modelData
+    readonly property real scaling: ScalingService.scale(modelData)
+
+    active: NightLightService.enabled
+
+    sourceComponent: PanelWindow {
+      id: nightlightWindow
+
+      screen: modelData
+      visible: NightLightService.isActive
+      color: Color.transparent
+
+      mask: Region {}
+
+      anchors {
+        top: true
+        bottom: true
+        left: true
+        right: true
+      }
+
+      WlrLayershell.layer: WlrLayershell.Overlay
+      WlrLayershell.exclusionMode: ExclusionMode.Ignore
+      WlrLayershell.keyboardFocus: WlrKeyboardFocus.None
+      WlrLayershell.namespace: "noctalia-nightlight"
+
+      Rectangle {
+        anchors.fill: parent
+        color: NightLightService.overlayColor
+      }
+
+      // Safe connection that checks if the window still exists
+      Connections {
+        target: NightLightService
+        function onIsActiveChanged() {
+          if (nightlightWindow && typeof nightlightWindow.visible !== 'undefined') {
+            nightlightWindow.visible = NightLightService.isActive
+          }
+        }
+      }
+
+      // Cleanup when component is being destroyed
+      Component.onDestruction: {
+        Logger.log("NightLight", "PanelWindow being destroyed")
+      }
+    }
+
+    // Safe state changes
+    onActiveChanged: {
+      if (!active) {
+        Logger.log("NightLight", "Loader deactivating for screen:", modelData.name)
+      }
+    }
+  }
+}

Modules/SettingsPanel/Tabs/DisplayTab.qml

@@ -14,6 +14,24 @@ Item {
   Layout.fillWidth: true
   Layout.fillHeight: true
 
+  // Time dropdown options (00:00 .. 23:30)
+  ListModel {
+    id: timeOptions
+  }
+  Component.onCompleted: {
+    for (var h = 0; h < 24; h++) {
+      for (var m = 0; m < 60; m += 30) {
+        var hh = ("0" + h).slice(-2)
+        var mm = ("0" + m).slice(-2)
+        var key = hh + ":" + mm
+        timeOptions.append({
+                             "key": key,
+                             "name": key
+                           })
+      }
+    }
+  }
+
   // Helper functions to update arrays immutably
   function addMonitor(list, name) {
     const arr = (list || []).slice()
@@ -209,6 +227,154 @@ Item {
             }
           }
         }
+
+        // Night Light Section
+        NText {
+          text: "Night Light"
+          font.pointSize: Style.fontSizeXXL * scaling
+          font.weight: Style.fontWeightBold
+          color: Color.mOnSurface
+          Layout.topMargin: Style.marginXL * scaling
+        }
+
+        NText {
+          text: "Reduce blue light emission to help you sleep better and reduce eye strain."
+          font.pointSize: Style.fontSize * scaling
+          color: Color.mOnSurfaceVariant
+          wrapMode: Text.WordWrap
+          Layout.fillWidth: true
+          Layout.preferredWidth: parent.width - (Style.marginL * 2 * scaling)
+        }
+
+        NToggle {
+          label: "Enable Night Light"
+          description: "Apply a warm color filter to reduce blue light emission."
+          checked: NightLightService.enabled
+          onToggled: checked => {
+                       Settings.data.nightLight.enabled = checked
+                     }
+        }
+
+        NToggle {
+          label: "Auto Schedule"
+          description: "Automatically enable night light based on time schedule."
+          checked: NightLightService.autoSchedule
+          enabled: NightLightService.enabled
+          onToggled: checked => {
+                       NightLightService.setAutoSchedule(checked)
+                     }
+        }
+
+        // Warmth settings
+        NText {
+          text: "Warmth"
+          font.pointSize: Style.fontSizeM * scaling
+          font.weight: Style.fontWeightBold
+          color: Color.mOnSurface
+          enabled: NightLightService.enabled
+        }
+
+        NText {
+          text: "Higher values create warmer (more orange) light, lower values create cooler (more blue) light."
+          font.pointSize: Style.fontSizeS * scaling
+          color: Color.mOnSurfaceVariant
+          wrapMode: Text.WordWrap
+          Layout.fillWidth: true
+          enabled: NightLightService.enabled
+        }
+
+        RowLayout {
+          spacing: Style.marginS * scaling
+          Layout.fillWidth: true
+          enabled: NightLightService.enabled
+
+          NSlider {
+            id: warmthSlider
+            from: 0
+            to: 10
+            stepSize: 1
+            value: Math.round(NightLightService.warmth * 10)
+            onPressedChanged: {
+              if (!pressed) {
+                NightLightService.setWarmth(value / 10)
+              }
+            }
+            Layout.fillWidth: true
+            Layout.minimumWidth: 150 * scaling
+          }
+
+          Connections {
+            target: NightLightService
+            function onWarmthChanged() {
+              if (!warmthSlider.pressed) {
+                warmthSlider.value = Math.round(NightLightService.warmth * 10)
+              }
+            }
+          }
+
+          NText {
+            text: `${warmthSlider.value}`
+            Layout.alignment: Qt.AlignVCenter
+            Layout.minimumWidth: 60 * scaling
+            horizontalAlignment: Text.AlignRight
+          }
+        }
+
+        // Schedule settings
+        NText {
+          text: "Schedule"
+          font.pointSize: Style.fontSizeM * scaling
+          font.weight: Style.fontWeightBold
+          color: Color.mOnSurface
+          enabled: NightLightService.enabled
+        }
+
+        RowLayout {
+          spacing: Style.marginL * scaling
+          Layout.fillWidth: true
+          enabled: NightLightService.enabled
+
+          ColumnLayout {
+            spacing: Style.marginXXS * scaling
+            Layout.fillWidth: true
+
+            NText {
+              text: "Start Time"
+              font.pointSize: Style.fontSizeS * scaling
+              color: Color.mOnSurfaceVariant
+            }
+
+            NComboBox {
+              model: timeOptions
+              currentKey: NightLightService.startTime
+              placeholder: "Select time"
+              onSelected: function (key) {
+                NightLightService.setSchedule(key, NightLightService.stopTime)
+              }
+            }
+          }
+
+          ColumnLayout {
+            spacing: Style.marginXXS * scaling
+            Layout.fillWidth: true
+
+            NText {
+              text: "Stop Time"
+              font.pointSize: Style.fontSizeS * scaling
+              color: Color.mOnSurfaceVariant
+            }
+
+            NComboBox {
+              model: timeOptions
+              currentKey: NightLightService.stopTime
+              placeholder: "Select time"
+              onSelected: function (key) {
+                NightLightService.setSchedule(NightLightService.startTime, key)
+              }
+            }
+          }
+        }
+
         Item {
           Layout.fillHeight: true
         }

README.md

@@ -105,10 +105,11 @@ nix run github:noctalia-dev/noctalia-shell
 <details>
 <summary><strong>For flakes</strong></summary>
 
-```nix
-{
-  description = "Example Nix flake with Noctalia + Quickshell";
+**Step 1**: Add quickshell and noctalia flakes
 
+```nix
+
+{
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
 
@@ -129,21 +130,29 @@ nix run github:noctalia-dev/noctalia-shell
     pkgs = import nixpkgs { inherit system; };
   in {
     nixosConfigurations.my-host = nixpkgs.lib.nixosSystem {
-      system = system;
       modules = [
         ./configuration.nix
-        # Add noctalia to system packages
-        ({ pkgs, ... }: {
           environment.systemPackages = [
-            noctalia.packages.${system}.default
-            quickshell.packages.${system}.default
           ];
-        })
       ];
     };
   };
+}```
+
+and in `configuration.nix`
+
+```nix
+
+# your configuration.nix
+{
+  environment.systemPackages = with pkgs; [
+    noctalia.packages.${system}.default
+    quickshell.packages.${system}.default
+  ];
 }
 ```
+
+
 </details>
 
 ### Usage

Services/BarWidgetRegistry.qml

@@ -17,6 +17,7 @@ Singleton {
                            "Clock": clockComponent,
                            "KeyboardLayout": keyboardLayoutComponent,
                            "MediaMini": mediaMiniComponent,
+                           "NightLight": nightLightComponent,
                            "NotificationHistory": notificationHistoryComponent,
                            "PowerProfile": powerProfileComponent,
                            "ScreenRecorderIndicator": screenRecorderIndicatorComponent,
@@ -53,6 +54,9 @@ Singleton {
   property Component mediaMiniComponent: Component {
     MediaMini {}
   }
+  property Component nightLightComponent: Component {
+    NightLight {}
+  }
   property Component notificationHistoryComponent: Component {
     NotificationHistory {}
   }

Services/NightLightService.qml

@@ -0,0 +1,108 @@
+pragma Singleton
+
+import QtQuick
+import Quickshell
+import Quickshell.Io
+import qs.Commons
+
+Singleton {
+  id: root
+
+  // Night Light properties - directly bound to settings
+  property bool enabled: Settings.data.nightLight?.enabled || false
+  property real warmth: (Settings.data.nightLight
+                         && Settings.data.nightLight.warmth !== undefined) ? Settings.data.nightLight.warmth : 0.6
+  property real intensity: (Settings.data.nightLight
+                            && Settings.data.nightLight.intensity !== undefined) ? Settings.data.nightLight.intensity : 0.8
+  property string startTime: Settings.data.nightLight?.startTime || "20:00"
+  property string stopTime: Settings.data.nightLight?.stopTime || "07:00"
+  property bool autoSchedule: Settings.data.nightLight?.autoSchedule !== false
+
+  // Computed properties
+  property color overlayColor: enabled ? calculateOverlayColor() : "transparent"
+  property bool isActive: enabled && (autoSchedule ? isWithinSchedule() : true)
+
+  Component.onCompleted: {
+    Logger.log("NightLight", "Service started")
+  }
+
+  function toggle() {
+    Settings.data.nightLight.enabled = !Settings.data.nightLight.enabled
+    Logger.log("NightLight", "Toggled:", Settings.data.nightLight.enabled)
+  }
+
+  function setWarmth(value) {
+    Settings.data.nightLight.warmth = Math.max(0.0, Math.min(1.0, value))
+    Logger.log("NightLight", "Warmth set to:", Settings.data.nightLight.warmth)
+  }
+
+  function setIntensity(value) {
+    Settings.data.nightLight.intensity = Math.max(0.0, Math.min(1.0, value))
+    Logger.log("NightLight", "Intensity set to:", Settings.data.nightLight.intensity)
+  }
+
+  function setSchedule(start, stop) {
+    Settings.data.nightLight.startTime = start
+    Settings.data.nightLight.stopTime = stop
+    Logger.log("NightLight", "Schedule set to:", Settings.data.nightLight.startTime, "-",
+               Settings.data.nightLight.stopTime)
+  }
+
+  function setAutoSchedule(auto) {
+    Settings.data.nightLight.autoSchedule = auto
+    Logger.log("NightLight", "Auto schedule set to:", Settings.data.nightLight.autoSchedule, "enabled:", enabled,
+               "isActive:", isActive, "withinSchedule:", isWithinSchedule())
+  }
+
+  function calculateOverlayColor() {
+    if (!isActive)
+      return "transparent"
+
+    // More vibrant color formula - stronger effect at high warmth
+    var red = 1.0
+    var green = 0.85 - warmth * 0.4 // More green reduction for stronger effect
+    var blue = 0.5 - warmth * 0.45 // More blue reduction for warmer feel
+    var alpha = 0.1 + warmth * 0.25 // Higher alpha for more noticeable effect
+
+    // Apply intensity
+    red = red * intensity
+    green = green * intensity
+    blue = blue * intensity
+
+    return Qt.rgba(red, green, blue, alpha)
+  }
+
+  function isWithinSchedule() {
+    if (!autoSchedule)
+      return true
+
+    var now = new Date()
+    var currentTime = now.getHours() * 60 + now.getMinutes()
+
+    var startParts = startTime.split(":")
+    var stopParts = stopTime.split(":")
+    var startMinutes = parseInt(startParts[0]) * 60 + parseInt(startParts[1])
+    var stopMinutes = parseInt(stopParts[0]) * 60 + parseInt(stopParts[1])
+
+    // Handle overnight schedule (e.g., 20:00 to 07:00)
+    if (stopMinutes < startMinutes) {
+      return currentTime >= startMinutes || currentTime <= stopMinutes
+    } else {
+      return currentTime >= startMinutes && currentTime <= stopMinutes
+    }
+  }
+
+  // Timer to check schedule changes
+  Timer {
+    interval: 60000 // Check every minute
+    running: true
+    repeat: true
+    onTriggered: {
+      if (autoSchedule && enabled) {
+        // Force overlay update when schedule changes
+        Logger.log("NightLight", "Schedule check - enabled:", enabled, "autoSchedule:", autoSchedule, "isActive:",
+                   isActive, "withinSchedule:", isWithinSchedule())
+      }
+    }
+  }
+}

Widgets/NPanel.qml

@@ -194,17 +194,13 @@ Loader {
         property int calculatedY: {
           if (panelAnchorVerticalCenter) {
             return (panelWindow.height - panelHeight) / 2
-          }
-          else if (panelAnchorBottom) {
+          } else if (panelAnchorBottom) {
             return panelWindow.height - panelHeight - (Style.marginS * scaling)
-          }
-          else if (panelAnchorTop) {
+          } else if (panelAnchorTop) {
             return (Style.marginS * scaling)
-          }
-          else if (panelAnchorBottom) {
+          } else if (panelAnchorBottom) {
             panelWindow.height - panelHeight - (Style.marginS * scaling)
-          }
-          else if (!barAtBottom) {
+          } else if (!barAtBottom) {
             // Below the top bar
             return Style.marginS * scaling
           } else {

Widgets/NPill.qml

@@ -27,6 +27,7 @@ Item {
   signal entered
   signal exited
   signal clicked
+  signal rightClicked
   signal wheel(int delta)
 
   // Internal state
@@ -194,6 +195,7 @@ Item {
   MouseArea {
     anchors.fill: parent
     hoverEnabled: true
+    acceptedButtons: Qt.LeftButton | Qt.RightButton
     onEntered: {
       root.entered()
       tooltip.show()
@@ -211,8 +213,12 @@ Item {
       }
       tooltip.hide()
     }
-    onClicked: {
-      root.clicked()
+    onClicked: function (mouse) {
+      if (mouse.button === Qt.LeftButton) {
+        root.clicked()
+      } else if (mouse.button === Qt.RightButton) {
+        root.rightClicked()
+      }
     }
     onWheel: wheel => {
                root.wheel(wheel.angleDelta.y)

shell.qml

@@ -21,6 +21,7 @@ import qs.Modules.Calendar
 import qs.Modules.Dock
 import qs.Modules.IPC
 import qs.Modules.LockScreen
+import qs.Modules.NightLight
 import qs.Modules.Notification
 import qs.Modules.SettingsPanel
 import qs.Modules.PowerPanel
@@ -39,6 +40,7 @@ ShellRoot {
   ScreenCorners {}
   Bar {}
   Dock {}
+  NightLight {}
 
   Notification {
     id: notification