Change Splash Screen from Ionic Browser

You have to change

value='screen'

with your own image (like assets/logo.png) in the config.xml file.

You can also change defaults sizes :

<preference name="SplashScreenWidth" value="300" /> <!-- defaults to "170" --> 
<preference name="SplashScreenHeight" value="300" /> <!-- defaults to "200" -->

The documentation of the splashscreen plugin : https://github.com/apache/cordova-plugin-splashscreen