In the project, the countries filled with grey means playable for this anthem but the countries filled with light grey can't be played the anthem and it will be added soon. Click any country that is filled with grey and a flag Make sure you need an strong internet connection to load completely. If the project is too impossible to load or timeout, you can go to the source code. If you want to enter source code in mobile, pressing the green flag is very difficult in landscape mode. Always press the full screen button on source code in mobile.