Why preview desktop version just like this?

Questions
1

I create framework7 project and i try build desktop with npm run build-prod-cordova-electron and after successfully and running .exe, preview in dekstop just like this

Screenshot_21
Screenshot_21.png983×742 16.5 KB

2

I guess it could be cordova-plugin-splashscreen, try to remove it:

cd cordova
cordova plugin rm cordova-plugin-splashscreen