Make Slider look nice

Components/ThemedSlider.qml

@@ -1,45 +1,99 @@
 import QtQuick
 import QtQuick.Controls
+import QtQuick.Effects
 import qs.Settings
 
 // Reusable themed slider styled like the sliders in Wallpaper.qml
 Slider {
     id: slider
 
-    // Optional monitor screen for scaling context
     property var screen
-    // Convenience flag mirroring Wallpaper sliders
     property bool snapAlways: true
 
+    readonly property real trackHeight: 12 * Theme.scale(screen)
+    readonly property real knobDiameter: 28 * Theme.scale(screen)
+    // Optional color to cut the track beneath the knob (should match surrounding background)
+    // If not provided, falls back to Theme.backgroundPrimary
+    property var cutoutColor
+    // Extra radius for the cutout so it shows around the knob edges
+    readonly property real cutoutExtra: 8 * Theme.scale(screen)
+
     snapMode: snapAlways ? Slider.SnapAlways : Slider.SnapOnRelease
 
+    implicitHeight: Math.max(trackHeight, knobDiameter)
+
     background: Rectangle {
         x: slider.leftPadding
         y: slider.topPadding + slider.availableHeight / 2 - height / 2
         implicitWidth: 200
-        implicitHeight: 4 * Theme.scale(screen)
+        implicitHeight: trackHeight
         width: slider.availableWidth
         height: implicitHeight
         radius: height / 2
         color: Theme.surfaceVariant
 
         Rectangle {
+            id: activeTrack
             width: slider.visualPosition * parent.width
             height: parent.height
             color: Theme.accentPrimary
             radius: parent.radius
+
+            Behavior on width {
+                NumberAnimation { duration: 120; easing.type: Easing.OutQuad }
+            }
+        }
+
+        // Circular cutout centered under the knob to create the "notch" on both sides
+        Rectangle {
+            id: knobCutout
+            width: knobDiameter + cutoutExtra
+            height: knobDiameter + cutoutExtra
+            radius: width / 2
+            color: slider.cutoutColor !== undefined ? slider.cutoutColor : Theme.backgroundPrimary
+            x: Math.max(0, Math.min(parent.width - width, slider.visualPosition * (parent.width - slider.knobDiameter) - cutoutExtra / 2))
+            y: (parent.height - height) / 2
         }
     }
 
-    handle: Rectangle {
+    handle: Item {
+        id: handleRoot
+        width: knob.implicitWidth
+        height: knob.implicitHeight
         x: slider.leftPadding + slider.visualPosition * (slider.availableWidth - width)
         y: slider.topPadding + slider.availableHeight / 2 - height / 2
-        implicitWidth: 20 * Theme.scale(screen)
-        implicitHeight: 20 * Theme.scale(screen)
-        radius: width / 2
-        color: slider.pressed ? Theme.surfaceVariant : Theme.surface
-        border.color: Theme.accentPrimary
-        border.width: 2 * Theme.scale(screen)
+
+        // Subtle shadow for a more polished look (keeps theme colors)
+        MultiEffect {
+            anchors.fill: knob
+            source: knob
+            shadowEnabled: true
+            shadowColor: Theme.shadow
+            shadowOpacity: 0.25
+            shadowHorizontalOffset: 0
+            shadowVerticalOffset: 1
+            shadowBlur: 8
+        }
+
+        Rectangle {
+            id: knob
+            implicitWidth: knobDiameter
+            implicitHeight: knobDiameter
+            radius: width / 2
+            color: slider.pressed ? Theme.surfaceVariant : Theme.surface
+            border.color: Theme.accentPrimary
+            border.width: 2 * Theme.scale(screen)
+
+            // Press feedback halo (using accent color, low opacity)
+            Rectangle {
+                anchors.centerIn: parent
+                width: parent.width + 10 * Theme.scale(screen)
+                height: parent.height + 10 * Theme.scale(screen)
+                radius: width / 2
+                color: Theme.accentPrimary
+                opacity: slider.pressed ? 0.16 : 0.0
+            }
+        }
     }
 }
 

Widgets/SettingsWindow/Tabs/Display.qml

@@ -434,6 +434,7 @@ ColumnLayout {
                                         id: scaleSlider
                                         Layout.fillWidth: true
                                         screen: modelData
+                                        cutoutColor: Theme.surface
                                         from: 0.8
                                         to: 2.0
                                         stepSize: 0.05

Widgets/SettingsWindow/Tabs/Wallpaper.qml

@@ -200,6 +200,7 @@ ColumnLayout {
                     ThemedSlider {
                         id: intervalSlider
                         Layout.fillWidth: true
+                        cutoutColor: Theme.backgroundPrimary
                         from: 10
                         to: 900
                         stepSize: 10
@@ -500,6 +501,7 @@ ColumnLayout {
                         ThemedSlider {
                             id: fpsSlider
                             Layout.fillWidth: true
+                            cutoutColor: Theme.backgroundPrimary
                             from: 30
                             to: 500
                             stepSize: 5
@@ -551,6 +553,7 @@ ColumnLayout {
                         ThemedSlider {
                             id: durationSlider
                             Layout.fillWidth: true
+                            cutoutColor: Theme.backgroundPrimary
                             from: 0.25
                             to: 10
                             stepSize: 0.05