Pretty Button Styling for macOS Apps (from SwiftyLaunch)

Button.swift

// Source: SwiftyLaunch 

import SwiftUI

let commonButtonRadius = 7.5
let commonButtonHeight = 35.0
let commonButtonFontStyle: Font = .system(.title3, weight: .semibold)

public struct CTAButtonStyle: ButtonStyle {
    private let disabled: Bool

    init(disabled: Bool) {
        self.disabled = disabled
    }

    public func makeBody(configuration: Configuration) -> some View {
        configuration.label
            .font(commonButtonFontStyle)
            .frame(height: commonButtonHeight)
            .padding(.horizontal)
            .foregroundStyle(Color.white)
            .background(Color.accentColor.gradient)
            .clipShape(RoundedRectangle(cornerRadius: commonButtonRadius, style: .continuous))
            .overlay(
                RoundedRectangle(cornerRadius: commonButtonRadius)
                    .strokeBorder(.quaternary, lineWidth: 0.5)
            )
            .opacity(configuration.isPressed ? 0.9 : 1)
            .opacity(disabled ? 0.4 : 1)
    }
}

extension ButtonStyle where Self == CTAButtonStyle {
    public static func cta(disabled: Bool = false) -> Self {
        CTAButtonStyle(disabled: disabled)
    }
}

public struct SecondaryButtonStyle: ButtonStyle {
    private let disabled: Bool

    public init(disabled: Bool = false) {
        self.disabled = disabled
    }

    public func makeBody(configuration: Configuration) -> some View {
        configuration.label
            .font(commonButtonFontStyle)
            .frame(height: commonButtonHeight)
            .padding(.horizontal)
            .foregroundStyle(Color(nsColor: disabled ? NSColor.disabledControlTextColor : NSColor.secondaryLabelColor))
            .background(.quaternary)
            .clipShape(RoundedRectangle(cornerRadius: commonButtonRadius, style: .continuous))
            .overlay(
                RoundedRectangle(cornerRadius: commonButtonRadius)
                    .strokeBorder(.quaternary, lineWidth: 0.5)
            )
            .opacity(configuration.isPressed ? 0.7 : 1)
            .opacity(disabled ? 0.7 : 1)
    }
}

extension ButtonStyle where Self == SecondaryButtonStyle {
    public static func secondary(disabled: Bool = false) -> Self {
        SecondaryButtonStyle(disabled: disabled)
    }
}

UsageExample.swift

// Usage example straight from the SwiftyLaunch app

HStack {
    Spacer()
    HStack {
        Button("Go Back") {
            // back action
        }
        .buttonStyle(.secondary())
        .keyboardShortcut(.cancelAction)

        Button(true ? "Generate App" : "Next") {
            // next action
        }
        .contentTransition(.numericText())
        .buttonStyle(.cta(disabled: false))
        .disabled(false)
        .keyboardShortcut(.defaultAction)
    }
    .padding(12.5)
    .background(.thinMaterial)
    .clipShape(RoundedRectangle(cornerRadius: 15, style: .continuous))
}
.padding()