I want to change the design when reloading the app

[Ecompreneur]

hello community, I would like to change the design to my liking of the page when you start or reload, I do not know if it is possible and if someone can help me to find out how.
thanks

[Marc_Dillon]

You can change the background image here (applies to entire app):

And you can change the "syncing the app" text here:

[Ecompreneur]

thanks but I still can't customize the color of the bar and the squares that appear....

[Marc_Dillon]

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I still can't customize the color of the bar and the squares that appear....

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Correct