diskOS Disco! 1.3.1

A little bigger. A lot nicer to use.

The album cover is still the interface. This release gives the things you touch and read more
room: confident buttons, clearer type, an album back sleeve and a queue that gets out of your way.
Built on 1.3.0, with its left-handed layout, scroll styles and signed SD updates intact.

The polish

• Song Info becomes an album back sleeve. A cover stamp, title and artist above a readable
  metadata card. Tap the title on Music, then Info (the circled i). Immersive remains available
  by holding the title with Title Hold set to Immersive, or through a shortcut.
• A cleaner Queue. Bigger Play, icon-only Random and Clear controls. The current song stays
  highlighted above a separator; upcoming songs follow without tiny explanatory text or duplicate
  headings. Empty controls dim and disable; Random needs at least two queued songs. Clear still
  requires two taps, and dragging to reorder still works.
• Action menus you can read. Track, album, artist, genre and file/folder menus get 56 px
  targets, 24 px icons and 16 px captions. Music's menu uses 70 px circles and 18 px captions.
  Confirmation controls are larger too. The compact Queue action still means Add to queue.
• Bigger Shortcuts. 50 px rows, 20 px labels and wider pills. All apps uses the same treatment;
  long names stay on one line. Pressed Quick Settings, Modes and shortcut buttons show a clear
  accent border and raised fill.
• Two new Music fonts. Settings > Display > Disco Options > Music Screen > Track Font:
  Original, Inter Semibold, or Nunito Bold. Alternatives use 30 px titles and 22 px artists,
  with international and CJK fallbacks. Applying uses the existing UI restart; music keeps playing.
• An EQ with breathing room. Ten bands span the screen, with larger labels, a bigger preset
  pill and Choose a band. The < control beside the preset returns from the editor.
• Find your place again. Library remembers the last twelve views' positions during the UI
  session. Long lists briefly show position/count; long queues reuse their summary for this.
  Highlighted long titles reveal briefly, then settle back to ellipsis.

Small cost, better feel

Fonts are pre-rendered bitmaps: no runtime TTF loading or synthetic bold. Scroll memory lives
in RAM, with no flash writes while browsing. Feedback uses existing widgets; list position
reuses the existing timer and queue position uses a short, delayed fade. No continuous idle
animation was added. Battery consumption has not been measured separately.

Install

Download mq_ui and SHA256SUMS, verify the binary, and sign it with the same owner keys
trusted by your Disc. Copy the complete diskos-update folder to the SD root, eject safely,
then Settings > System > Maintenance > Update from SD Card. About should show 1.3.1.
Let the trial run for at least three minutes and accept it before restarting.
See the complete update guide. UI updates do not reinstall Album Roulette.

Validation

The owner tested the polished3 UI on the Disc and approved it for release. The final 1.3.1
version rebuild is checked for the static MIPS32r2 / FP64 / NaN2008 ABI, embedded version,
theme and punctuation gates. LVGL renders cover dark/right and light/left layouts, fonts,
action menus, Queue and Shortcuts; interaction checks cover Info navigation, queue confirmation,
empty controls, scrolling and font fallbacks. The separate Album Roulette app remains 1.3.1.

UI fingerprint

SHA-256 (mq_ui):

4f63e119c3a71982b1756311a147be0eee2732e77edeea112ce2ab2a9811574b

MD5: e70d63c7d06b3c82c6a807de576a4303. Size: 5,167,276 bytes.