Replaces the plain Gtk.Stack crossfade with a focal-point zoom (Gtk.Fixed +
Gsk.Transform): the clicked node's screen position becomes a pivot the parent
page zooms into while the child page slides in from that exact spot and grows
to become the new center — like a moon becoming the planet you now orbit.
Going back reverses the same motion around the same remembered point
(_stack_origins tracks it per depth).
Adds a holographic overlay (config.json "hologram" toggle, default on):
violet scanlines + a looping sweep band + magenta/red noise specs with real
per-particle lifetimes (fade in/out, not single-frame flicker), all composited
through a radial mask so it reads as one soft-edged glow over the menu rather
than tinting the whole square canvas.
Adds an opening-only intro (never plays between nodes): each button starts
invisible and fades in on a staggered cascade — center first, then ring nodes
in order — with a bright noise burst flashing at each node's position the
instant it starts appearing, like it's condensing out of the static.
Also fixes a transparency regression: the new hologram DrawingArea sits above
everything via Gtk.Overlay, and the cyberqueer theme's aggressive `*` selector
was painting it an opaque background, hiding the whole menu — forced
transparent via CSS, same fix pattern as the earlier orbit-node label bug.
Amir Alexander Abdelbaki
4fbffee5a0