- UI: Options: Add Backup Export/Import.
- UI: Options: Add "System Language" option.
- UI: Highlight focused tool buttons.
- UI: IconCache: Check "./icons/" existence once on startup.
- Installer: Portable: Create "Data/" directory with user permissions.
- Installer: Windows 7: Check for installed KB4474419.
- Installer: Check for VC Redist x86 only in 32-bit version.
- Installer: Skip OS compatibility checks on upgrade.