Colour Background Problem

Hi everyone, Iā€™m Anoneem and this is the first time I write to this forum, actually I use Kodular since yesterday :sweat_smile:
I have a problem and I hope someone could help me.
When I set the background colour on Kodular edit everything ok but when I test the app the background colour is a little bit darker than in the edit page.
Thanks in advance to everyone who help me

Have a nice day :grin: