TreeFrogUI v1.5.0_b

TreeFrogUI v1.5.0 prerelease

• Audio fixes suppress idle speaker static, fix silent PS1 launches and media
  playback after audio handoff, and make launcher menu ticks audible.
• System volume is shared between FrogUI Settings, the in-game menu, and the
  physical volume buttons, with changes followed live during gameplay.
• Appearance settings add optional Allium-inspired colour palettes, the Nunito
  font used by Allium, and an adjustable UI font size from 18 to 26 px. The
  existing default colour theme remains unchanged.
• Updated Spanish translations and refined Japanese system names.
• FrogShell gains an optional Developer Mode with a terminal, command history,
  script and executable launching, and USB keyboard input where supported.
  Hold L1 + R1 + X + Y for about two seconds to toggle it, or create
  frogui/developer.flag on the SD card.
• FrogShell's on-screen keyboard adds caps, symbols, and modifier keys.
• The ebook reader combines upstream progress-saving improvements with the
  local fixes for page-turn freezes, hidden progress files, and page fit above
  the status bar. Saves use checked atomic replacement and are deferred until
  navigation settles; the MuPDF cache remains limited to 16 MB.
• Updated PS1 compatibility reports.
• Release builds now compile FrogShell and the ebook reader from source so the
  packages include their latest changes.

Thanks to ozkaoz for the audio fixes and FrogShell
Developer Mode, and
Maheshivara for ebook reader improvements,
MartStartIV for the Spanish translation
updates, and spanscape for the Japanese system
name refinements.

This is a prerelease for testing. Copy update.zip to the SD-card root and
reboot, or use the full ZIP and the matching install_first/<device>/ files
for a fresh installation. Keep a backup of your card.