feat: initial public release

ConsentOS — a privacy-first cookie consent management platform.

Self-hosted, source-available alternative to OneTrust, Cookiebot, and
CookieYes. Full standards coverage (IAB TCF v2.2, GPP v1, Google
Consent Mode v2, GPC, Shopify Customer Privacy API), multi-tenant
architecture with role-based access, configuration cascade
(system → org → group → site → region), dark-pattern detection in
the scanner, and a tamper-evident consent record audit trail.

This is the initial public release. Prior development history is
retained internally.

See README.md for the feature list, architecture overview, and
quick-start instructions. Licensed under the Elastic Licence 2.0 —
self-host freely; do not resell as a managed service.

sdks/ios/ConsentOS/Sources/ConsentOSUI/BannerTheme.swift

@@ -0,0 +1,111 @@
+#if canImport(SwiftUI)
+import SwiftUI
+import ConsentOSCore
+
+// MARK: - Banner Theme
+
+/// Resolved colour and typography theme for the consent banner.
+///
+/// Derived from ``ConsentConfig/BannerConfig`` values, falling back to sensible defaults.
+public struct BannerTheme: Sendable {
+
+    // MARK: - Colours
+
+    public let backgroundColor: Color
+    public let textColor: Color
+    public let accentColor: Color
+    public let secondaryTextColor: Color
+    public let dividerColor: Color
+    public let acceptButtonBackground: Color
+    public let acceptButtonTextColor: Color
+    public let rejectButtonBackground: Color
+    public let rejectButtonTextColor: Color
+
+    // MARK: - Typography
+
+    public let titleFont: Font
+    public let bodyFont: Font
+    public let buttonFont: Font
+    public let captionFont: Font
+
+    // MARK: - Layout
+
+    public let cornerRadius: CGFloat
+    public let horizontalPadding: CGFloat
+    public let verticalPadding: CGFloat
+    public let buttonHeight: CGFloat
+
+    // MARK: - Button Labels
+
+    public let acceptButtonText: String
+    public let rejectButtonText: String
+    public let manageButtonText: String
+    public let title: String
+    public let description: String
+
+    // MARK: - Defaults
+
+    static let defaultAccentHex = "#1A73E8"  // Google-blue — overridden by brand config
+    static let defaultBackgroundHex = "#FFFFFF"
+    static let defaultTextHex = "#1A1A1A"
+
+    // MARK: - Factory
+
+    /// Creates a ``BannerTheme`` from the banner configuration returned by the API.
+    ///
+    /// Hex values not present in the config fall back to neutral defaults.
+    public static func from(config: ConsentConfig.BannerConfig) -> BannerTheme {
+        let background = Color(hex: config.backgroundColor) ?? Color(.systemBackground)
+        let text       = Color(hex: config.textColor)       ?? Color(.label)
+        let accent     = Color(hex: config.accentColor)     ?? Color(hex: defaultAccentHex)!
+
+        return BannerTheme(
+            backgroundColor: background,
+            textColor: text,
+            accentColor: accent,
+            secondaryTextColor: text.opacity(0.6),
+            dividerColor: text.opacity(0.12),
+            acceptButtonBackground: accent,
+            acceptButtonTextColor: .white,
+            rejectButtonBackground: Color(.secondarySystemBackground),
+            rejectButtonTextColor: text,
+            titleFont: .headline,
+            bodyFont: .subheadline,
+            buttonFont: .subheadline.weight(.semibold),
+            captionFont: .caption,
+            cornerRadius: 12,
+            horizontalPadding: 16,
+            verticalPadding: 16,
+            buttonHeight: 44,
+            acceptButtonText: config.acceptButtonText ?? "Accept All",
+            rejectButtonText: config.rejectButtonText ?? "Reject All",
+            manageButtonText: config.manageButtonText ?? "Manage Preferences",
+            title: config.title ?? "We value your privacy",
+            description: config.description ?? "We use cookies to improve your experience and for analytics."
+        )
+    }
+
+    /// Default theme used when no configuration has been loaded yet.
+    public static var defaultTheme: BannerTheme {
+        from(config: ConsentConfig.BannerConfig())
+    }
+}
+
+// MARK: - Colour Hex Extension
+
+extension Color {
+    /// Initialises a `Color` from a hex string such as `"#1A73E8"` or `"1A73E8"`.
+    init?(hex: String?) {
+        guard let hex else { return nil }
+        let sanitised = hex.trimmingCharacters(in: CharacterSet(charactersIn: "#"))
+        guard sanitised.count == 6,
+              let value = UInt64(sanitised, radix: 16) else {
+            return nil
+        }
+        let r = Double((value >> 16) & 0xFF) / 255
+        let g = Double((value >>  8) & 0xFF) / 255
+        let b = Double((value      ) & 0xFF) / 255
+        self.init(red: r, green: g, blue: b)
+    }
+}
+#endif