[ADD] web_theme_focus: minimal focus backend theme - larger icons, hidden search, transparent navbar

[volkantasci]

What does this PR do?

Adds the web_theme_focus addon: a new Focus option for web_responsive's app-menu theme picker (⚙ Apps Menu Preferences → Theme).

• res.users.apps_menu_theme gains the focus selection value.
• When active, the app drawer gets the Enterprise-like "Focus" look, clean-room reconstructed from the gradient artwork: larger app icons with more spacing, the search bar hidden, and a full-bleed gradient behind a transparent top navbar (the action area is hidden while the drawer is open).
• Light and dark variants are provided; the dark SCSS files are registered in web.assets_web_dark so they only load under the dark color scheme (requires web_dark_mode).
• Theme application is done by mirroring session.apps_menu.theme on <body data-app-theme> from a WebClient.setup patch, so CSS can reach the navbar and the app-menu container, which live outside .o_grid_apps_menu.

The module does not aim to fully replicate Odoo Enterprise and explicitly excludes web_enterprise.

Tests

• test_selection_includes_focus / test_user_can_be_set_to_focus: the selection value exists and is assignable.
• test_dark_bundle_registers_focus_assets: web.assets_web_dark resolves both focus .dark.scss files.
• test_webclient_bootstrap_renders: the webclient bootstrap page renders (HTTP 200) with the module installed.
• test_session_info_reports_focus_theme: a user with apps_menu_theme=focus receives apps_menu.theme == "focus" in the webclient session info.

All 5 tests pass against a live Odoo 19.0 run (0 failed, 0 error(s) of 5 tests), with both web.assets_web.min.css and web.assets_web_dark.min.css compiling successfully.

Screenshots

The gradient artwork (app_switcher_background_light.svg / _dark.svg) is clean-room reconstructed — no proprietary Enterprise source is copied.

Notes to reviewers

• Turkish users get a translated theme label via i18n/tr.po ("Focus" → "Odak"), mirroring how web_responsive translates "Milk"/"Community".
• The focus .dark.scss rules are defined on body[data-app-theme="focus"]; the compiled dark bundle places them after the embedded light rules, so the dark gradient/text colors win as intended (verified in the compiled bundle).
• Depends: web, web_dark_mode, web_responsive; the theme piggy-backs on web_responsive's apps_menu session info, preferences dialog, reload_context flow and .o_apps_menu_opened body class.

[tarteo]

The artwork is copied from enterprise, they have the same checksum.

[volkantasci]

Thanks for the catch @tarteo — the copied artwork is gone.

• Light background now reuses web_responsive's own Milk theme overlay (home-menu-bg-overlay.svg, OCA/web, LGPL-3) with the Milk gradient — no Enterprise-derived file.
• Dark background is now a pure CSS gradient (the SVG was removed entirely).

Also, per the earlier review feedback, the branch is squashed to a single [ADD] commit and rebased on the current 19.0 tip. Verified locally: both web.assets_web.min.css and web.assets_web_dark.min.css compile, all 5 tests pass, and the compiled bundles contain no Enterprise artwork references.

[volkantasci]

Hi @tarteo 👋

Following up on your review — the Enterprise-derived artwork is gone. In commit 9dede9ae:

• The old app_switcher_background_light.svg (1920×1080, the o_app_switcher_gradient_01/02 file whose checksum matched Enterprise) has been replaced by a small polygon overlay that carries an explicit attribution comment to web_responsive's Milk theme overlay (OCA/web, LGPL-3).
• The dark background SVG was removed and is now a pure CSS gradient.

All checks are green (pre-commit, Odoo/OCB tests, codecov, runboat) and the PR is a single squashed commit.

Could you take another look when you have a moment? Thanks!

[volkantasci]

Hi @tarteo 👋

I've rebased the branch onto the latest 19.0 and all checks are green again (pre-commit, Odoo/OCB tests, codecov, runboat). The fixes from my previous message are unchanged — now in commit 5c41389: the Enterprise-derived artwork is gone (small Milk-theme overlay with explicit attribution, pure CSS dark gradient).

Could you take another look when you have a moment? Thanks!