v0.2

Added

• File Structure Info viewer (View → File Structure Info) - displays MET file layout, header details, validation results, and address mappings
• METFileStructure class for centralized structure tracking and validation
• Unsaved changes check when exiting application with Yes/No/Cancel dialog
• File type filtering - only human-readable text files are displayed in text editor
• Hex view toggle (View → Hex View) for all file types with actual MET file offsets
• Status bar with dynamic messages and unsaved changes indicator
• Window title now shows file name and unsaved changes marker (*)
• TreeView context menu for import/export/save operations
• Dynamic file resizing with automatic backup/restore on errors

Changed

• Updated all file encoding from ASCII to UTF-8 for international character support
• Updated MET file parser to use structure-based reading instead of pattern matching
• Changed text editor from Enabled/Disabled to IsReadOnly for better scrolling support
• Improved text file display by hiding leading unprintable characters while preserving them on save
• Enhanced file import/save workflow with resize prompts and confirmation dialogs
• Refactored TreeView hierarchy building for clearer file organization

Fixed

• Fixed PictureBox image disposal memory leaks
• Fixed views not clearing when switching between file types (text/image/binary)
• Fixed hex view triggering false unsaved changes flag
• Fixed hex view not clearing properly when toggling off
• Fixed hex view scrolling disabled issue
• Fixed blocks/squares appearing in text files caused by unprintable control characters