In apples "displaying data in a list" swift ui tutorial I have the same code as the example with a different result

Question

I copy pasted each line of code and still have different results then what is shown online.

I then downloaded Apple's completed project example and it ran properly.

How could the same code being copy and pasted not work but when just downloaded it worked fine?

I am trying to learn but I have been stuck on this for hours, I even put my code in a comparer and they are the exact same.

import SwiftUI

struct ScrumsView: View {
    let scrums: [DailyScrum]
    
    var body: some View {
        List {
            ForEach(scrums) { scrum in
                NavigationLink(destination: Text(scrum.title)) {
                CardView(scrum: scrum)
            }
                .listRowBackground(scrum.theme.mainColor)
        }
    }
        .navigationTitle("Daily Scrums")
}
}

struct ScrumsView_Previews: PreviewProvider {
    static var previews: some View {
        NavigationView {
        ScrumsView(scrums: DailyScrum.sampleData)
    }
}
}

Theme code, it is not adding a folder with the colors atm

enum Theme: String {
    case bubblegum
    case buttercup
    case indigo
    case lavender
    case magenta
    case navy
    case orange
    case oxblood
    case periwinkle
    case poppy
    case purple
    case seafoam
    case sky
    case tan
    case teal
    case yellow
    
    var accentColor: Color {
        switch self {
        case .bubblegum, .buttercup, .lavender, .orange, .periwinkle, .poppy, .seafoam, .sky, .tan, .teal, .yellow: return .black
        case .indigo, .magenta, .navy, .oxblood, .purple: return .white
        }
    }
    var mainColor: Color {
        Color(rawValue)
    }
    var name: String {
        rawValue.capitalized
    }
}