function Initialize-WPFUI {
    [OutputType([void])]
    param(
        [Parameter(Mandatory)]
        [string]$TargetGridName
    )

    switch ($TargetGridName) {
        "appscategory"{
            # TODO
            # Switch UI generation of the sidebar to this function
            # $sync.ItemsControl = Initialize-InstallAppArea -TargetElement $TargetGridName
            # ...

            # Create and configure a popup for displaying selected apps
            $selectedAppsPopup = New-Object Windows.Controls.Primitives.Popup
            $selectedAppsPopup.IsOpen = $false
            $selectedAppsPopup.PlacementTarget = $sync.WPFselectedAppsButton
            $selectedAppsPopup.Placement = [System.Windows.Controls.Primitives.PlacementMode]::Bottom
            $selectedAppsPopup.AllowsTransparency = $true

            # Style the popup with a border and background
            $selectedAppsBorder = New-Object Windows.Controls.Border
            $selectedAppsBorder.SetResourceReference([Windows.Controls.Control]::BackgroundProperty, "MainBackgroundColor")
            $selectedAppsBorder.SetResourceReference([Windows.Controls.Control]::BorderBrushProperty, "MainForegroundColor")
            $selectedAppsBorder.SetResourceReference([Windows.Controls.Control]::BorderThicknessProperty, "ButtonBorderThickness")
            $selectedAppsBorder.Width = 200
            $selectedAppsBorder.Padding = 5
            $selectedAppsPopup.Child = $selectedAppsBorder
            $sync.selectedAppsPopup = $selectedAppsPopup

            # Add a stack panel inside the popup's border to organize its child elements
            $sync.selectedAppsstackPanel = New-Object Windows.Controls.StackPanel
            $selectedAppsBorder.Child = $sync.selectedAppsstackPanel

            # Close selectedAppsPopup when mouse leaves both button and selectedAppsPopup
            $sync.WPFselectedAppsButton.Add_MouseLeave({
                if (-not $sync.selectedAppsPopup.IsMouseOver) {
                    $sync.selectedAppsPopup.IsOpen = $false
                }
            })
            $selectedAppsPopup.Add_MouseLeave({
                if (-not $sync.WPFselectedAppsButton.IsMouseOver) {
                    $sync.selectedAppsPopup.IsOpen = $false
                }
            })

            # Creates the popup that is displayed when the user right-clicks on an app entry
            # This popup contains buttons for installing, uninstalling, and viewing app information

            $appPopup = New-Object Windows.Controls.Primitives.Popup
            $appPopup.StaysOpen = $false
            $appPopup.Placement = [System.Windows.Controls.Primitives.PlacementMode]::Bottom
            $appPopup.AllowsTransparency = $true
            # Store the popup globally so the position can be set later
            $sync.appPopup = $appPopup

            $appPopupStackPanel = New-Object Windows.Controls.StackPanel
            $appPopupStackPanel.Orientation = "Horizontal"
            $appPopupStackPanel.Add_MouseLeave({
                $sync.appPopup.IsOpen = $false
            })
            $appPopup.Child = $appPopupStackPanel

            $appButtons = @(
            [PSCustomObject]@{ Name = "Install";    Icon = [char]0xE118 },
            [PSCustomObject]@{ Name = "Uninstall";  Icon = [char]0xE74D },
            [PSCustomObject]@{ Name = "Info";       Icon = [char]0xE946 }
            )
            foreach ($button in $appButtons) {
                $newButton = New-Object Windows.Controls.Button
                $newButton.Style = $sync.Form.Resources.AppEntryButtonStyle
                $newButton.Content = $button.Icon
                $appPopupStackPanel.Children.Add($newButton) | Out-Null

                # Dynamically load the selected app object so the buttons can be reused and do not need to be created for each app
                switch ($button.Name) {
                    "Install" {
                        $newButton.Add_MouseEnter({
                            $appObject = $sync.configs.applicationsHashtable.$($sync.appPopupSelectedApp)
                            $this.ToolTip = "Install or Upgrade $($appObject.content)"
                        })
                        $newButton.Add_Click({
                            $appObject = $sync.configs.applicationsHashtable.$($sync.appPopupSelectedApp)
                            Invoke-WPFInstall -PackagesToInstall $appObject
                        })
                    }
                    "Uninstall" {
                        $newButton.Add_MouseEnter({
                            $appObject = $sync.configs.applicationsHashtable.$($sync.appPopupSelectedApp)
                            $this.ToolTip = "Uninstall $($appObject.content)"
                        })
                        $newButton.Add_Click({
                            $appObject = $sync.configs.applicationsHashtable.$($sync.appPopupSelectedApp)
                            Invoke-WPFUnInstall -PackagesToUninstall $appObject
                        })
                    }
                    "Info" {
                        $newButton.Add_MouseEnter({
                            $appObject = $sync.configs.applicationsHashtable.$($sync.appPopupSelectedApp)
                            $this.ToolTip = "Open the application's website in your default browser`n$($appObject.link)"
                        })
                        $newButton.Add_Click({
                            $appObject = $sync.configs.applicationsHashtable.$($sync.appPopupSelectedApp)
                            Start-Process $appObject.link
                        })
                    }
                }
            }
        }
        "appspanel" {
            $sync.ItemsControl = Initialize-InstallAppArea -TargetElement $TargetGridName
            Initialize-InstallCategoryAppList -TargetElement $sync.ItemsControl -Apps $sync.configs.applicationsHashtable
        }
        default {
            Write-Output "$TargetGridName not yet implemented"
        }
    }
}