Summary of what changed in each file, all confined to the change points shown in the diffs:
ChannelScreen.h — ChannelMessage gains a session-only scope_idx (initialised to 0xFF in the constructor and explicitly reset to 0xFF on SD load, since region is not persisted); addMessage gains a trailing defaulted scope_idx and stores it. The message-list line now renders (Xh)(Xb) Xm, with the byte figure taken from path_len's upper bits for floods and from the_mesh.getNodePrefs()->path_hash_mode + 1 for the 0xFF/0 sentinels. The path overlay shows Route: ... (N-byte) and a new Region: line (name, or (reg unknown), or nothing when unscoped).
MyMesh.h / .cpp — a fixed 28-entry SCOPE_NAMES table, a _scope_keys array precomputed once at the end of begin() via initScopeKeys(), resolveScopeIndex() (matches pkt->transport_codes[0] against the candidates; 0xFF unscoped, 0xFE unmatched), and the public getScopeName() accessor. onChannelMessageRecv resolves the index and passes it to newMsg.
AbstractUITask.h / UITask.h / UITask.cpp — newMsg gains a trailing uint8_t scope_idx = 0xFF; only the channel addMessage call forwards it. DMs and sent echoes keep the default, so they stay unscoped.
MsgFileRecord and the SD save/load format are untouched, so there's no version bump.
The fix (six sites: 948, 978, 1519, 1651, 1719, 1906): the indexer now chooses pixel-vs-char wrapping from _display->getFontStyle(), the same basis the renderer (1200), the layout sizing (1336), and the cache key already use. With all four agreeing, the indexer's recorded page boundary lands on the exact byte where the renderer's height-based stop lands — no more swallowed run between pages.
Version bump (INDEX_VERSION 13 → 14): your existing .idx caches were built by the old indexer and would otherwise be reloaded as-is (same font key), so the fix would appear to do nothing. Bumping the version makes the loader discard every v13 cache and rebuild it.
All six edits are in and braces balance (267/267). Here's what changed in Audiobookplayerscreen.h:
PNGdec include (47) and cover size 40→30 (67) — 30 virtual units ≈ 55px.
PNG draw callback coverDrawCallbackPNG (147) — nearest-neighbour downscales the 256px source line-by-line and dithers to 1-bit using the same Bayer matrix as the JPEG path. The decoder is heap-allocated per-decode (new PNG()), mirroring how the JPEG path uses new JPEGDEC(), so there's no permanent BSS cost.
decodeFolderCoverPNG() (419) + tryLoadFolderCover() (505) — reads cover.png from _currentPath into PSRAM and decodes it.
Hooks in both openBook (1099) and advanceTrack (1198), so the cover loads on open and persists as tracks auto-advance within an album. It only loads when there's no embedded cover, so M4B/ID3 embedded art still wins; music (no embedded art) gets the folder PNG.
Layout (1531, 1556) — cover now draws below the artist line, above the status/Paused-Vol line, exactly where you wanted it.
target.h — declares meck_audio_route_amp() and meck_audio_codec_init() in the bridge (54-55), guarded by HAS_ES8311_AUDIO, ready for the alarm/voice paths to reuse later.
target.cpp — includes ES8311.h (6) and defines both helpers where board and the codec driver are visible: route+amp (100-102), and the once-only es8311_init_44100_16bit() (108-110).
Audiobookplayerscreen.h — forward-declares both (54-55); ensureI2SInit() now does route+amp and the 5-arg setPinout with MCLK on MAX (268-270); and meck_audio_codec_init() runs right after connecttoFS (1142). The Pro path is untouched.
Contact list display bug fix for all devices: MyMesh.h — added onAdvertRecv override declaration (line 214), alongside the other contact-related overrides.
MyMesh.cpp — added the implementation (lines 374-387). It calls BaseChatMesh::onAdvertRecv() first to let all normal processing happen (auto-add, replay guard, path caching, etc.), then unconditionally looks up the contact by pubkey and bumps lastmod to local RTC time. This way, even when the base class's replay guard early-returns (because timestamp <= last_advert_timestamp), the contact still bubbles up in the recency-sorted contacts list since we're actively hearing it.
pelgraine