launcherMenu.grid = { enable; columns; maxRows; } restyles the "+" menu's
programs section as a grid of tiles (icon, name below): Steam's own items
stay in place, maxRows limits the visible rows, and Steam's scroll fade is
recomputed so it only shows where there is more to scroll. The pinned
Desktop row is slim and centred in tile mode.
launcherMenu.iconFallbacks (default utilities-terminal, preferences-system)
installs hicolor copies of Breeze app icons, since Steam resolves program
icons only in hicolor; Konsole and KDE System Settings had none.
The checker gains checkOnly "stylesheet" signatures (matched against the
bundle's CSS files) to cover the scroll fade's gradient; launcher-menu-grid
signatures cover the section keys and the ScrollFade classes.
Runtime patches no longer use webpack module ids or minified export
names, which change with every Steam UI build:
- modules/lib/finders.js: finder library (getWebpackRequire,
findModule/findExport by source text and shape, resolveAll with a
per-page cache, findFiberUp/findFiberDown/findInReactTree), installed
once per page as window.__sfuiFind.
- modules/lib/signatures.json: the signatures, per patch, shared by the
patches and the checker. lib/default.nix mkPatch wraps a patch
`(find, sigs, opts) => ...` with the library, its signatures and
options; exposed as steamFrame.uiPatches.lib.
- Keyboard patch (VERSION 10): layouts module, current/enabled layout
getters, arrow keys, VR keyboard status and VirtualKeyboardManager are
found by signature; if one doesn't match it reports which and leaves
Steam untouched. unpatch.js uses references the patch remembered.
The helper logs inject results when they change.
- launcher-menu launch/pinned-desktop use the library's fiber helpers;
launch no longer depends on the bar popup's window name.
- scripts/check-signatures.mjs (+ webpack-modules.mjs): extracts module
factories from the installed bundles without a browser and checks
every signature (found / ambiguous / missing, with module ids and
export names). README: "Finders and signatures", "After a Steam update".
Pierre Kisters