Really easy & gr8 approach :
First create your splash with the following website :
https://www.norio.be/android-feature-graphic-generator/
Choose your logo and slogan, choose your beautiful background. resize it to 4096x4096.
Now download that picture and uplodate it to :
https://apetools.webprofusion.com/app/#/tools/imagegorilla
And generate all the splash screens needed, all devices, all platforms.
Enjoy!
There are enough answers here that will help with the implementation. this post was meant to help others with the first step of creating the splash screen!
