Fix win10 icons by falling back to Segoe MDL2 Assets (#696)

Scripts/GUI/MainWindow-TweaksBuilder.ps1

@@ -132,6 +132,9 @@ function Build-DynamicTweaks {
         # Convert HTML entity to character (e.g.,  -> actual character)
         if ($categoryIcon -match '&#x([0-9A-Fa-f]+);') {
             $hexValue = [Convert]::ToInt32($matches[1], 16)
+            if ($WinVersion -lt 22000 -and $hexValue -eq 0xE794) {
+                $hexValue = 0xE734
+            }
             $icon.Text = [char]$hexValue
         }
         $icon.Style = $Window.Resources['CategoryHeaderIcon']
@@ -201,9 +204,8 @@ function Build-DynamicTweaks {
     foreach ($categoryObj in $orderedCategories) {
         $categoryName = $categoryObj.Name
 
-        # Create/get card for this category
-        $panel = GetOrCreateCategoryCard -categoryObj $categoryObj
-        if (-not $panel) { continue }
+        # Card is created lazily on the first rendered item
+        $panel = $null
 
         # Collect groups and features for this category, then sort by priority
         $categoryItems = @()
@@ -287,6 +289,7 @@ function Build-DynamicTweaks {
                         if ($soleFeature.FeatureId -match '^Disable') { $opt = 'Disable' } elseif ($soleFeature.FeatureId -match '^Enable') { $opt = 'Enable' }
                         $items = @('No Change', $opt)
                         $comboName = ("Feature_{0}_Combo" -f $soleFeature.FeatureId) -replace '[^a-zA-Z0-9_]', ''
+                        if (-not $panel) { $panel = GetOrCreateCategoryCard -categoryObj $categoryObj }
                         $combo = CreateLabeledCombo -parent $panel -labelText $soleFeature.Label -comboName $comboName -items $items
                         # attach tooltip from Features.json if present
                         if ($soleFeature.ToolTip -or $soleFeature.DisableWhenApplied -eq $true) {
@@ -311,6 +314,7 @@ function Build-DynamicTweaks {
 
                 $items = @('No Change') + ($filteredValues | ForEach-Object { $_.Label })
                 $comboName = 'Group_{0}Combo' -f $group.GroupId
+                if (-not $panel) { $panel = GetOrCreateCategoryCard -categoryObj $categoryObj }
                 $combo = CreateLabeledCombo -parent $panel -labelText $group.Label -comboName $comboName -items $items
                 # attach tooltip from UiGroups if present
                 if ($group.ToolTip) {
@@ -331,6 +335,7 @@ function Build-DynamicTweaks {
                 if ($feature.FeatureId -match '^Disable') { $opt = 'Disable' } elseif ($feature.FeatureId -match '^Enable') { $opt = 'Enable' }
                 $items = @('No Change', $opt)
                 $comboName = ("Feature_{0}_Combo" -f $feature.FeatureId) -replace '[^a-zA-Z0-9_]', ''
+                if (-not $panel) { $panel = GetOrCreateCategoryCard -categoryObj $categoryObj }
                 $combo = CreateLabeledCombo -parent $panel -labelText $feature.Label -comboName $comboName -items $items
                 # attach tooltip from Features.json if present, and include the disabled-state reason
                 if ($feature.ToolTip -or $feature.DisableWhenApplied -eq $true) {

Scripts/GUI/SetWindowThemeResources.ps1

@@ -7,7 +7,8 @@
     populates the window's Resources with SolidColorBrush entries keyed by
     category and resource name (e.g. "AppAccentColor"). Additionally loads and
     merges shared XAML styles from the script's SharedStylesSchema path if
-    available.
+    available. Also resolves the icon font: Segoe Fluent Icons on Windows 11
+    and Segoe MDL2 Assets on Windows 10.
 
     .PARAMETER window
     The WPF Window whose resource dictionary will be populated.
@@ -122,6 +123,12 @@ function SetWindowThemeResources {
         }
     }
 
+    # Segoe Fluent Icons ships only on Windows 11 (build >= 22000). 
+    # On Windows 10, fall back to Segoe MDL2 Assets.
+    $winBuild = Get-ItemPropertyValue 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' CurrentBuild
+    $iconFontName = if ($winBuild -ge 22000) { 'Segoe Fluent Icons' } else { 'Segoe MDL2 Assets' }
+    $window.Resources['AppIconFontFamily'] = [System.Windows.Media.FontFamily]::new($iconFontName)
+
     # Load and merge shared styles
     if ($script:SharedStylesSchema -and (Test-Path $script:SharedStylesSchema)) {
         $sharedXaml = Get-Content -Path $script:SharedStylesSchema -Raw