Build Customized Linphone for Windows 10

I need a developer to build the Linphone app for Windows 10. The app needs to have user interface modifications, specifically a custom theme or branding.

Ideal Skills and Experience:
- Strong familiarity with Linphone and its architecture
- Experience in Windows application development, especially for Windows 10
- Proficiency in implementing custom themes and branding
- Knowledge of UI/UX principles to ensure a seamless user experience

Please provide samples of similar work done.