App Manager v2.5.16

• [Feature] Added a KeyStore tag for apps that has keystore items in the App Info tab. It has red colour if the phone has screen lock
• [Feature] Added an option to choose between Gzip (default) and BZip2 for backups (in settings)
• [Feature] Added an option to set presets for backup/restore options (in settings)
• [Feature] Added backup/restore support using OpenPGP client (such as OpenKeychain)
• [Feature] Added Portuguese language (and updates for other languages)
• [Feature] Added sort and filter for running apps
• [Feature] Allow backup/restore of app permissions (enabled by default)
• [Feature] Automatically select required/recommended apk files in the apk selection screen for apps with splits (for apk installer)
• [Feature] Clear existing data before restoring data backups
• [Feature] Improved navigation using a keyboard (incomplete)
• [Feature] Migrate to Androidx preference library
• [Feature] View SELinux context for running apps
• [Fix] Check for keystore only when data backup is requested
• [Fix] Fixed wrong memory usage in the running apps
• [Fix] Prevent installer from hanging indefinitely (actually for 5 hours) when installing a huge (x)apk(s) file
• [Fix] Prevent false-positive when checking for keystore items for an app
• [Fix] Removed old am.jar on app update
• [Fix] Set non-IFW rules based on current user ID
• [Fix] Store checksums in a different file (that can be encrypted) instead of meta.am.v1
• [Fix] Use apk-parser to parse manifest of installed apps

Backup/restore is more or less finalised now. But use it only for testing as the metadata version will be incremented to 2 in the final release.