Android App Customization and Reskin

I'm looking for an experienced Android developer to customize and reskin an existing Java-based app. The project involves both UI and functional changes.

UI Changes:
- New theme or color scheme
- Layout modifications
- Custom icons and images

Functional Changes:
- Adding new features
- Modifying existing features

Ideal skills and experience:
- Proficiency in Java and Android development
- Strong UI/UX design skills
- Experience in adding and modifying app features

Please provide examples of similar work done.