It is a modified Newaita theme with changing places icons especially for holidays.
Newaita icon theme is licensed under the CC BY-NC-SA 3.0 Linux icon theme combining old style and color of material design.
To change the icon options for a dark or light panel:
1. Go to Newaita (or Newaita-dark) directory
2. Open terminal here
3. Type: chmod +x ./PV.sh
4. Type: ./PV.sh
5. Follow the menu options