I have an fixed array of allowed colors as “availableColors”
I have a “thisColor” color variable used to fill a rectangle (predefined as “Color(.blue)” in the code below)

I also have a string variable “colorString” (“pink” in the code below)

If “colorString” matches the Color.description of any item in “availableColors”, variable “thisColor” should be assigned that item.

I must be missing something because while I can loop through the colors, I can’t assign the variable color.

The code and preview are below. If the commented line is uncommented, the preview fails with the generic message: Failed to produce diagnostic for expression; please submit a bug report

I am sure I am missing something obvious, since this doesn’t seem to be too weird. But I can’t figure out what.

import SwiftUI

struct testView: View {
    
    let availableColors: [Color] = [.blue,.pink,.gray]
    
    @State private var thisColor = Color(.blue)
    var colorString = ".pink"
    
    var body: some View {
        
        VStack {
            Text(thisColor.description)
                .bold()
            Divider()
            ForEach(availableColors, id: .self) { colorItem in
                Text(colorItem.description)

                if(colorItem.description == colorString) {
                    // thisColor = colorItem
                }
            }
            Rectangle()
                .fill(thisColor)
                .frame(width:50,height:50)
        }
    }
}

#Preview {
    testView()
}

(I’m not sure how to best summarize the question. I’ll edit with suggestions to best do so)