A complete solution to create Local and Push Notifications, customizing buttons, images, sounds, emoticons and applying many different layouts for Flutter apps. Changelog excerpt: ### Changed - **Critical alerts are now a channel-only capability, with the same rule on iOS and Android.**A notification is delivered as a critical alert only when its channel is registered as critical (`NotificationChannel(criticalAlerts: true)`). This mirrors Android, where Do-Not-Disturb bypass is inherently a channel property with no per-notification override, giving one predictable cross-platform behavior. ### Fixed - **iOS: the critical-alert availability check no longer blocks the not[...]