Phosphor 4.4.0 — the listening release

Phosphor is a CRT-style XY oscilloscope for desktop audio — 4.4 is the
listening release: nine pieces of real-use feedback, each root-caused,
none papered over.

Fixed, honestly

You said	What was actually wrong	Now
Glass doesn't work on CPU mode	the raster worker never received the glass alpha — every CPU frame shipped opaque	CPU glass matches the GPU glass law exactly; offline exports byte-identical (golden-gated)
Dropdowns squished with plenty of room	egui caps every combo popup at a fixed 200 px by default	popup caps track the live window — they grow until the window is the limit, then scroll
Options missing from the right-click menu	content hid behind an "is mini?" flag instead of measured space	the menu shows everything the window can physically fit — a large mini gets the full menu
Right-click can't reach the nerd HUD	the menu had a bare checkbox; only F knew the cycle	one FPS: <state> (F) row walks off → counter → nerd HUD, the F key's exact state machine
F dead in the mini	clicking the mini instantly starts a window-drag, so the click never focused it — keys went elsewhere	the mini claims keyboard focus before any drag
M in fullscreen doesn't reach the mini	the WM ignores resize requests on a fullscreen surface	M un-fullscreens and enters the mini in one gesture
Kits don't explain themselves	no tooltips	hover the section for what kits are; hover any kit for its card — author + every stage explained
Epilepsy warning re-asks every launch	acceptance was session-only	accepting persists forever — across launches and versions; anyone who never accepts keeps the guard
No undo in custom appearance	—	undo/redo, 5 gestures deep; color-drag storms coalesce into one step

Plus one we caught ourselves while testing: pressing Escape to close
a dropdown quit the entire app (the quit cascade fell through).
Popups now own Escape; the cascade only sees a clean press.

The standing law this release created

All UI receipts now run at 2560×1440 — space bugs are invisible on
small test screens, and this release existed because of exactly that.

Since v4.3.0

Nothing removed; the "not yet in v4" ledger (studio #1, screensaver
#8) is unchanged. One honest caveat: CPU-glass has pixel-alpha unit
receipts and byte-held goldens, but the final see-the-desktop-through
check needs a real compositor — report anything odd and it goes
straight into the regression ledger.

Install

Debian / Ubuntu / Mint

sudo apt install ./phosphor_4.4.0_amd64.deb

Fedora / openSUSE (built on Mint, rpm --test verified — reports welcome)

sudo dnf install ./phosphor-4.4.0-1.x86_64.rpm

From source

tar xf phosphor-4.4.0-source.tar.gz && cd phosphor-4.4.0
# Debian-family: sudo apt install build-essential libpipewire-0.3-dev scdoc
# Fedora:        sudo dnf install gcc pipewire-devel scdoc
cargo build --release -p phosphor-app
sudo install -m755 target/release/phosphor /usr/local/bin/

Verify

phosphor --version   # phosphor 4.4.0 (v4)

SHA256SUMS covers every asset above.

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Gates at ship: 20/20 test suites · clippy silent · bench ALL PASS ·
every fix receipted at 1440p with real clicks (the receipts live in
the commit message and docs/dev/BUGLOG.md #4–#8).

🐢 TURTLE VECTOR — built with Claude Fable 5.