Defining struct alone did not help, the error still occurs.

At first I want to check without code if it works. after removing this error it should work on a blank screen.

I am giving up on notifications, instead I would like to remove the code error: cannot use instance member 'number' within property initializer; property initializers run before 'self' is available from code: let number = "same number" let absolute = abs(number)

I solved the problem, thank you.

I probably need to assign a color name with swift code 5. The color in the little square next to the appicon is already there.

Xcode version is 12.3 swift 5. I'm sure I chose the color as you write. Maybe it needs to type the right command in the terminal ? I named the color and selected the color in color settings, but it doesn't want to color with this color the little square next to appicon color(color name) is still white.

How can I assign color settings to unassigned children so that the custom colors are visible in the app in the font background and foreground ?

One large window underneath is gray and has a warning on it: not assigned. On the other large squares I have marked the color(whatever).

I can't save the color there next to the appicon in the small color square with the white color, while I set the color(any) to the large Universal squares.

Yes it is,

Hi, this is my code : import SwiftUI struct ColorManager { // create static variables for custom colors static let spotifyGreen = Color("SpotifyGreen") //... add the rest of your colors here} // Or you can use an extension// this will allow you to just type .spotifyGreen and you wont have to use ColorManager.spotifyGreenextension Color { static let spotifyGreen = Color("SpotifyGreen") // ... add the rest of your colors here}