I found it described here: construct.net/en/tutorials/how-to-use-loader-layouts-to-make-custom-loading-screens-9
Here is the part i mean:
"...Use loader layout enables the use of a loader layout. By default it is disabled, so you need to specifically turn it on for each project. Then, the first layout becomes the loader layout. You should specifically select your loader layout with the First layout option to make sure it is the first layout to appear (otherwise Construct might choose a different layout to use for the loader)...".
So if i understand it correctly you have to make the first screen as simple as possible (not much graphics), Turn On "use Loader Layouts" and under First Layout choose the "Loader"-Layout you created.
That link is just a repost from " scirra.com/tutorials/318/how-to-use-loader-layouts-to-make-custom-loading-screens " (Scirra site to > Construct site)
and it is from year 2012, that means 7 years old... is it still relevant?
It still show default progress bar/ or Construct 3 default loading / or blank black screen (if you choose nothing) instead of "customize loading screen" which means it is not fully customized splash screen, it is just showing a layer before the main menu layer of your game.
I just hope somebody from official who read this thread could clarify about this "Custom splash screen"
Simple question : Custom splash screen work for mobile export (.apk) Yes/No ?
If yes, put an example .c3p in editor page
If no, they should put a note for paid plan about custom splash screen not work for mobile.