SleekMenu 64 v2.2.0

EverDrive-64 Pro owners: update to 2.2.1, which fixes the card no longer answering after a while.

Upgrading from 2.1: download the new Game Catalog Manager and press
Update card. It puts SleekMenu 2.2.0 on the card.

• Background music. Choose a song under Theme on the Card tab
  (MP3, WAV, FLAC or OGG) and SleekMenu plays it on a loop while you
  browse. It fades out when a game starts. On the console, the new MUSIC
  row of the Z screen turns it on or off. The Card tab's Console group
  is now called Theme, with Colors and Music options.
• Start the console in SleekMenu on the Pro and X7. The toggle on the
  Card tab now works on the EverDrive-64 Pro with firmware 26.1014 or
  newer. It copies SleekMenu to ED64/menu.n64, which the Pro starts in
  place of its own menu. Games started from SleekMenu then have no in-game
  menu or save states. Uncheck the switch to get the Pro's menu back. On
  the X7 it works as before, through ED64/autoexec.v64.
• The box-art collection lives in sleekmenu/. release-metadata.zip
  is fetched into the sleekmenu/ folder with everything else the Game
  Catalog Manager keeps, and one at the card root is moved there by the
  next update. Nothing is downloaded again.
• Fixed a bug that prevented game loading from X7 when the card has screenshots.
  Since 2.1, SleekMenu kept its four picture files open, and the X7 can only have
  four files open at once, so every game failed with "ROM OPEN FAILED".
  It now keeps one of them open at a time.
• Cycle through games from a game's details. Left and right on the
  D-pad go to the previous or next game. Hold it to run through them. The
  box and the save type show up when you stop, and B goes back to the list
  on the game you ended on.
• Other minor fixes