<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
This pull request includes two main groups of changes: improvements to
build configuration (specifically, warning suppression for experimental
features), and refactoring in the `WrapPanelCustom` control to use the
correct `StretchChild` type from the CommunityToolkit. These updates
help streamline the build process and improve code clarity and
maintainability.
**Build configuration improvements:**
* Added `/p:IgnoreExperimentalWarnings=true` to the
`RestoreAdditionalProjectSourcesArg` in the build pipeline to enable
suppression of experimental warnings during project restore.
* Updated `Directory.Build.targets` to append specific warning codes
(`CS8305`, `SA1500`, `CA1852`) to the `NoWarn` property when
`IgnoreExperimentalWarnings` is set, suppressing these warnings during
builds.
**Refactoring in `WrapPanelCustom`:**
* Updated the `WrapPanel` control in `WrapPanel.cs` to use
`ToolkitStretchChild` from `CommunityToolkit.WinUI.Controls` instead of
a local `StretchChild` type, ensuring consistency and leveraging the
toolkit's implementation.
[[1]](diffhunk://#diff-53e4c6a2890b6fb1c66ea8a19f0049070910083608f8fb80c2b1f5a8d254d007R11-R12)
[[2]](diffhunk://#diff-53e4c6a2890b6fb1c66ea8a19f0049070910083608f8fb80c2b1f5a8d254d007L180-R184)
[[3]](diffhunk://#diff-53e4c6a2890b6fb1c66ea8a19f0049070910083608f8fb80c2b1f5a8d254d007L193-R197)
[[4]](diffhunk://#diff-53e4c6a2890b6fb1c66ea8a19f0049070910083608f8fb80c2b1f5a8d254d007L400-R402)
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
- [ ] Closes: #xxx
<!-- - [ ] Closes: #yyy (add separate lines for additional resolved
issues) -->
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx
<!-- Provide a more detailed description of the PR, other things fixed,
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
Reverts microsoft/PowerToys#44208
Basically enable back: https://github.com/microsoft/PowerToys/pull/43920
the core change is adding this new Target to ensure when "building in
Visual Studio", it will restore the nuget package first for vcxproj:
```xml
<!-- Auto-restore NuGet for native vcxproj (PackageReference) when building inside VS -->
<Target Name="EnsureNuGetRestoreForVcxproj" BeforeTargets="PrepareForBuild" Condition="
'$(BuildingInsideVisualStudio)' == 'true'
and '$(DesignTimeBuild)' != 'true'
and '$(RestoreInProgress)' != 'true'
and '$(MSBuildProjectExtension)' == '.vcxproj'
and '$(RestoreProjectStyle)' == 'PackageReference'
and '$(MSBuildProjectExtensionsPath)' != ''
and !Exists('$(MSBuildProjectExtensionsPath)project.assets.json')
">
<Message Importance="normal" Text="NuGet assets missing for $(MSBuildProjectName); running Restore...; IntDir=$(IntDir); BaseIntermediateOutputPath=$(BaseIntermediateOutputPath)" />
<MSBuild Projects="$(MSBuildProjectFullPath)" Targets="Restore" Properties="RestoreInProgress=true" BuildInParallel="false" />
</Target>
```
<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
### Feature
Separate the find my mouse's spotlight area with the backdrop, so that
we could support the frequent ask - We should leave the circle
transparent in find my mouse
### Engineering:
1. Modernize the framework - From UWP composition to WASDK composition
api
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
- [x] Closes: #15512
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx
<!-- Provide a more detailed description of the PR, other things fixed,
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
- [x] Data migration: Should nota break existing experience when upgrade
- [x] Should be able to configure the background and spotlight opacity
- [x] Should be able to work with different settings
https://github.com/user-attachments/assets/6f311c03-fa79-41d3-94bb-589d853295f4
---------
Co-authored-by: Niels Laute <niels.laute@live.nl>
