Three things stood between `assets.rs` and a themed desktop.
`import-theme` never called it. The module was written, tested and unreachable;
`--assets` now wires it up, with `--source`, `--overwrite` and `--dry-run`, and
finds the theme repo's Source/ directory by searching upward rather than
assuming HyDE's exact nesting depth.
The archive guard rejected every real icon theme. Refusing any `..` in a link
target is right for an entry path but wrong for a symlink: icon themes are
built out of relative links into sibling directories, and Tela ships thousands
of `../devices/network-wireless.svg`. What matters is whether the target
resolves inside the destination, which `stays_within_root` now decides
lexically -- no canonicalize, since the tree does not exist at plan time and
following real links during validation would be a TOCTOU window. Absolute
targets and links that climb past the root are still refused; the existing
escape tests still pass.
`apply` silently ignored `source`. It parsed and resolved inline while `watch`
went through `compile`, and `flatten` drops `Item::Source` -- so an include
that worked under `watch` vanished under `apply`. `apply` now uses `compile`
too. This matters immediately: the generated theme lives in its own
theme.conf, sourced from cosmic.conf, so re-importing a theme cannot clobber
the keybindings.
The waybar stylesheet claimed a theme could be dropped in ahead of it to
recolour the bar. It could not -- HyDE names its colours main-bg/wb-act-bg and
the rules referenced bar-bg/accent. Split into palette + theme + bridge +
rules, imported in that order, so the claim is now true. Verified by loading
the result through GTK's own CSS parser: with Tokyo Night installed main-bg
resolves to #24283b and wb-act-bg to #bb9af7; with an empty theme.css the
defaults stand. Both parse without error.
Two deliberate departures, both commented where they are made: the theme's
near-transparent bar-bg is composited at 0.85 because cosmic-comp has no blur
to put behind it, and theme.css is copied next to style.css rather than
imported from HyDE's own path, because a missing @import is fatal in GTK and
would break the bar on any machine without a theme.
