make backgroundOverlay and overviewBackdrop disableable via modules config

modules/Modules.qml

@@ -79,6 +79,12 @@ QtObject {
     property var power: ({
             enable: true
         })
+    property var backgroundOverlay: ({
+            enable: true
+        })
+    property var overviewBackdrop: ({
+            enable: true
+        })
 
     property FileView _file: FileView {
         path: (Quickshell.env("XDG_CONFIG_HOME") || (Quickshell.env("HOME") + "/.config")) + "/nova-shell/modules.json"

modules/OverviewBackdrop.qml

@@ -31,10 +31,11 @@ PanelWindow {
         anchors.fill: parent
         fragmentShader: Qt.resolvedUrl("hex_wave.frag.qsb")
 
-        // Uniforms
-        property size uResolution: Qt.size(width, height)
+        // Uniforms — order must match shader std140 layout
         property real uSize: 50.0
         property real uWavePhase: -200
+        property real _pad0: 0
+        property vector4d uResolution: Qt.vector4d(width, height, 0, 0)
         property color uC0: M.Theme.base0C
         property color uC1: M.Theme.base0E
         property color uC2: M.Theme.base09

modules/hex_wave.frag

@@ -6,14 +6,13 @@ layout(location = 0) out vec4 fragColor;
 layout(std140, binding = 0) uniform buf {
     mat4 qt_Matrix;
     float qt_Opacity;
-
-    vec2 uResolution;
     float uSize;
     float uWavePhase;
+    float _pad0;
+    vec4 uResolution;  // xy = resolution, zw unused
     vec4 uC0;
     vec4 uC1;
     vec4 uC2;
-
     vec4 uSpinners0;
     vec4 uSpinners1;
     vec4 uSpinners2;
@@ -37,7 +36,8 @@ float sdHexFlat(vec2 p, float r) {
 }
 
 void main() {
-    vec2 frag = qt_TexCoord0 * uResolution;
+    vec2 res = uResolution.xy;
+    vec2 frag = qt_TexCoord0 * res;
 
     float dx = uSize * 1.5;
     float dy = uSize * 1.7320508;
@@ -47,14 +47,12 @@ void main() {
     float row = round((frag.y - yoff) / dy);
     vec2 center = vec2(col * dx, row * dy + yoff);
 
-    // Wave factor
     float dist = center.x - uWavePhase;
     float wf = exp(-dist * dist / 9000.0);
 
     float baseR = uSize * 0.48;
     float inradius = baseR * (1.0 + 0.35 * wf);
 
-    // Check spinners
     float spinAngle = 0.0;
     vec4 spinners[12] = vec4[12](
         uSpinners0, uSpinners1, uSpinners2, uSpinners3,
@@ -81,22 +79,18 @@ void main() {
         return;
     }
 
-    // Gradient color
-    float fx = clamp(center.x / uResolution.x, 0.0, 1.0);
+    float fx = clamp(center.x / res.x, 0.0, 1.0);
     vec3 rgb = fx < 0.5
         ? mix(uC0.rgb, uC1.rgb, fx * 2.0)
         : mix(uC1.rgb, uC2.rgb, (fx - 0.5) * 2.0);
 
-    // Alpha from distance to center
-    float fy = clamp(center.y / uResolution.y, 0.0, 1.0);
+    float fy = clamp(center.y / res.y, 0.0, 1.0);
     float dc = length(vec2(fx - 0.5, fy - 0.5));
     float a = 0.03 + dc * 0.06;
 
-    // Wave brighten
     rgb = min(rgb + vec3(0.3 * wf), vec3(1.0));
     a += 0.12 * wf;
 
-    // Anti-alias
     float aa = 1.0 - smoothstep(-1.0, 0.0, d);
     a *= aa;
 

nix/hm-module.nix

@@ -86,6 +86,8 @@ in
           "volume"
           "idleInhibitor"
           "power"
+          "backgroundOverlay"
+          "overviewBackdrop"
         ] (name: moduleOpt name { });
       in
       simpleModules

shell.qml

@@ -23,13 +23,19 @@ ShellRoot {
                 screen: scope.modelData
             }
 
-            BackgroundOverlay {
+            Loader {
+                active: Modules.backgroundOverlay.enable
+                sourceComponent: BackgroundOverlay {
                     screen: scope.modelData
                 }
+            }
 
-            OverviewBackdrop {
+            Loader {
+                active: Modules.overviewBackdrop.enable
+                sourceComponent: OverviewBackdrop {
                     screen: scope.modelData
                 }
+            }
 
             ScreenCorners {
                 screen: scope.modelData