Wide reflow of Wi-Fi and the theme chooser (landscape 7.2), host renders

Operator design answer, 2026-10-14: “Real wide reflow” for the Wi-Fi pages and the theme chooser on wide screens.

Host renders only, 2026-10-15, from

cd nix/rust-shell-client
cargo run --example render_landscape_surfaces -- <dir>

They prove paint and layout at each size, not the board, a monitor or touch.

• Wi-Fi (wifi_ui::layout_for): the two columns come from the surface’s own size. The left column keeps 520/1184 of the content width, the list column takes the rest, and the list runs to the bottom margin. Refresh, the saved-network buttons and Cancel/Connect follow the real right and bottom edges. At the landscape panel’s 1232x568 every rect is the panel’s old literal: the seven Wi-Fi renders at 1232x568 are byte-identical to docs/evidence/panel-landscape/host/wifi-*-1232x568.png.
• Themes (theme_ui::chooser_layout_for, render::paint_grid): every wide surface, the landscape panel included, shows all themes and all of the active theme’s backgrounds at once as two side-by-side grids of cards, each with its name below. The theme in use and the background on Home are outlined; a tap on a card applies it (ThemeIntent::Theme/Background, the carousel’s existing apply path); a drag applies nothing; a finger down washes the card and an applying card spins. Cards take the largest size that fits the column (themes at most 240 px wide, backgrounds 360 px). Portrait keeps the carousels.

Files: theme-chooser-{1232x568,1280x800,1920x1080}.png, wifi-list-{1232x568,1280x800,1920x1080}.png, wifi-entry-password-{1280x800,1920x1080}.png, wifi-entry-saved-1280x800.png, wifi-forget-1920x1080.png. The fixtures load no thumbnails, so cards show their loading spinner.

Tests: wifi_ui::tests::the_wide_wifi_layout_keeps_the_panel_literals_and_fills_a_monitor (1280x800, 1920x1080, 1280x720: list to the right and bottom margins, every control on the surface, the last network, Connect, Cancel and the eye reachable) and theme_ui::tests::wide_choosers_show_every_theme_and_background_as_a_tappable_grid (1232x568, 1280x720, 1280x800, 1920x1080 with 1, 7 and 12 themes: cards at least 80 px wide, inside their column, not overlapping, labels above the message line, each card’s centre applying that card, a drag applying nothing, Back and Close still working). cargo test: 513 + 22 + 14 + 8 + 4 + 11 + 1 + 6 pass.

On the board (2026-10-15)

Evidence class: operator report on the HDMI monitor (1280x800), test system 7n025h1fvw5nxkmja2y0j5zk4adazf50 (this change plus a kernel test). The operator: “it works and it feels pretty good”, and reported a dark band over the dock on Home. That band was the HDMI render timing, not this change; it is fixed separately (docs/evidence/card-shell/bottom-band-flicker/hdmi.md). The shell does not log chooser taps, so no record shows which card was tapped or what it applied.

Limits: no frame capture on the board. The grid has no scrolling: with many user themes its cards shrink (the test holds 12 at 80 px or more), and a much longer list would need a scrolling grid.

Operator, 2026-10-16

After using the theme chooser on the HDMI monitor, the operator said: “themes worked in landscape hdmi fine”. Evidence class: operator report (real glass). This closes task 7.2’s open tap item. No shell log records the card that was tapped.