Log Message:
stella: update to 6.7.

6.6 to 6.7 (June 13, 2022)

  * IMPORTANT NOTES:
    - Because of fixes to JSON handling, all remappings will be reset
      to defaults; if you had custom mappings, they will need to be
      re-entered again.
    - Because of internal changes, all state files are now invalid.

  * Completely reworked the file launcher:
    - Redesigned user interface
    - Added tracking of user favorites, recently played and most popular
      games
    - Added virtual directories for selecting tracked games
    - Added quick path navigation
    - Added navigation history
    - Added icons for files and directories
    - Added option to show/hide file extensions
    - Extended context menu and shortcuts
    - Fixed sluggish behaviour when reading large and/or invalid files

  * Added hotkey display to tooltips.

  * Added option to automatically pause emulation when focus is lost.

  * Added option to toggle autofire mode.

  * Improved controller mappings for Paddles.

  * Improved controller mappings for Driving controllers.

  * Improved Mindlink support.

  * Added another oddball TIA glitch option for score mode color.

  * Enhanced TV jitter emulation (TODO: doc).

  * Enhanced support for CDFJ+ bankswitching type.

  * Added 0FA0 bankswitching for Fotomania ROMs.

  * Added ARM chip auto detection.

  * Extended support for older BUS (experimental) ROMs that worked
    with an older, obsolete version of the BUS scheme; special thanks
    to SpiceWare for the code.

  * Fixed Stella crash due to invalid ZIP files.

  * Fixed TV mode auto detection in some ARM ROMs.

  * Fixed color loss when switching TV mode from/to PAL.

  * Fixed score mode glitch emulation corner case.

  * Fixed state messages staying on screen forever.

  * Added M1 support for the macOS build.

  * Debugger improvements:
    - added PlusROM information
    - fixed patching code in ZP-RAM
    - improved bank origin detection

  * Updated internal ROM properties database to ROM-Hunter version 17
    (thanks go to RomHunter for his tireless research in this area).
    Related to this, updated the snapshot collection.