Document what 0.2.9.4 added, and fix what it made wrong
New page: **Welcome Guide** — Super+Escape, the six pages, synui-welcome's
verbs, the live key column, turning it off, and why it is a process of its
own rather than a window in the bar. Linked from Home and the sidebar.
Corrected, because these were stale rather than merely thin:
- Keybindings: Super+Escape was documented as "Menu". Super+/ is a hotkey
MANAGER now — unbound actions and installed applications, not only what
already has a chord. Theme count was thirteen and is fifteen; Prism and
Prism Light, which is what a fresh install actually boots into, were
not in the list.
- Bar Plugins: the two headline numbers were both wrong. qs.Ui is 27
implemented types, not two — and that matters, because a QML property
that does not resolve is zero, so a widget written against the fuller
module went on, reported itself enabled and drew nothing (9 of 40
community widgets resolved before, 39 do now). `browse` reaches around
nine hundred widgets from the community registry, not the five shipped
here. Plus refresh/order/check, panels and services being hosted once
per session, and the bar menu's own Plugins section.
- Gaming: MANGOHUD=1 is no longer exported for the session, with the
reason — the layer segfaults Vulkan clients on AMD and never on NVIDIA,
so it is a crash that follows the graphics card rather than the
program. `syn game` is the launcher throughout. A GeForce NOW section:
what the Electron client cannot do, measured, and why the browser is
the client.
- Big Screen: the Recent bar (the DESKTOP's list, kept by the compositor
at the one moment every launch has in common), the wheel, the GFN tile.
- The Desktop: nine widgets, not four — the analog clock and its four
faces, and the music card. And the font is one setting for the whole
desktop with fifteen typefaces shipped to pick from.
- Settings: naming the machine. Every install answers to `synapse`, so
two on one network and Avahi renames one with no say in which.
- Commands: synui-welcome, syn-gfn, `syn game`, `synctl binds`,
`synctl recent`, synui-plugins' refresh/order/check.
- Troubleshooting: "MangoHud never appears" had one reason and now has
two, the new one first.
Checked: synui/tests/readme_binds.sh passes against Keybindings.md (73
default binds), and no internal wiki link is broken.