fix(theme): GLOBAL chrome defaults -- acrylic 50%, scrollbar-less, frame-less

Per operator (multiple reaffirmations):
> "you forgot that the MiOS app/terminal is acrylic set to on
>  GLOBALLY AND SET TO 50 PERCENT TRANSPARENCY!!!! FRAME-LESS/
>  BORDER-LESS/SCROLL-BAR-LESS, ETC--ETC!!! GLOBAL DEFAULTS"

mios.toml [theme] reconciled with what Get-MiOS.ps1's WT profile
patcher actually applies (which was already correct). The prior
[theme] table had wrong values (opacity 0.85 float, cursor_shape
filledBox) that didn't match the working code -- a configurator
operator editing those keys would've gotten unexpected results.

Corrected schema:
  acrylic            = true        (was already true)
  opacity            = 50          (was 0.85; WT uses int 0-100)
  system_backdrop    = "acrylic"   (NEW; WT 1.18+ per-profile)
  cursor_shape       = "bar"       (was "filledBox"; matches code)
  scrollbar_state    = "hidden"    (NEW; frame uses every col)
  padding            = "0"         (NEW; frame flush to edges)
  suppress_app_title = true        (NEW)
  launch_mode        = "focus"     (NEW; frame-less / no-titlebar / no-tab-row)
  disable_animations = false       (NEW; keep WT animations live)

Configurator HTML [theme] section expanded:
  - opacity now int (0-100) with placeholder 50 (was float 0.85)
  - system_backdrop / scrollbar_state / launch_mode dropdowns added
  - suppress_app_title checkbox added
  - cursor_shape default order swapped (bar first; matches GLOBAL default)
  - legend updated: "(acrylic 50% / frame-less / scrollbar-less = MiOS GLOBAL defaults)"

The WT profile patcher in mios-bootstrap will land concurrently --
it now READS these values from mios.toml via Get-MiosTomlValue
instead of hardcoding, so editing in the configurator HTML re-skins
both MiOS + MiOS-DEV profiles on the next bootstrap run.

Memory feedback_mios_terminal_global_chrome captures the contract
(WT version-compat table, why useAcrylic + systemBackdrop ship
together, why no root-level WT writes).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: Kabuki94

usr/share/mios/configurator/index.html

@@ -481,26 +481,51 @@ <h1>MiOS configurator <span class="v" id="v-meta">schema 1.2.0 / mios 0.2.4</spa
         <input type="text" id="f-term-fh" data-key="terminal.frame_height" data-type="int" placeholder="19">
       </fieldset>
       <fieldset>
-        <legend>theme</legend>
+        <legend>theme (acrylic 50% / frame-less / scrollbar-less = MiOS GLOBAL defaults)</legend>
         <label for="f-theme-mode">mode</label>
         <select id="f-theme-mode" data-key="theme.mode">
           <option value="dark">dark</option>
           <option value="light">light</option>
         </select>
         <div class="checkbox-row">
           <input type="checkbox" id="f-theme-acrylic" data-key="theme.acrylic">
-          <label for="f-theme-acrylic">acrylic (WT background blur)</label>
+          <label for="f-theme-acrylic">acrylic (WT useAcrylic ON)</label>
         </div>
-        <label for="f-theme-opacity">opacity (0.0 - 1.0)</label>
-        <input type="text" id="f-theme-opacity" data-key="theme.opacity" data-type="float" placeholder="0.85">
+        <label for="f-theme-opacity">opacity (0-100; 50 = 50% transparency)</label>
+        <input type="text" id="f-theme-opacity" data-key="theme.opacity" data-type="int" placeholder="50">
+        <label for="f-theme-backdrop">system_backdrop (WT 1.18+)</label>
+        <select id="f-theme-backdrop" data-key="theme.system_backdrop">
+          <option value="acrylic">acrylic</option>
+          <option value="mica">mica</option>
+          <option value="default">default</option>
+        </select>
         <label for="f-theme-cursor">cursor_shape</label>
         <select id="f-theme-cursor" data-key="theme.cursor_shape">
+          <option value="bar">bar</option>
           <option value="filledBox">filledBox</option>
           <option value="emptyBox">emptyBox</option>
-          <option value="bar">bar</option>
           <option value="underscore">underscore</option>
           <option value="vintage">vintage</option>
         </select>
+        <label for="f-theme-scroll">scrollbar_state</label>
+        <select id="f-theme-scroll" data-key="theme.scrollbar_state">
+          <option value="hidden">hidden (frame uses every col)</option>
+          <option value="visible">visible</option>
+          <option value="always">always</option>
+        </select>
+        <label for="f-theme-pad">padding</label>
+        <input type="text" id="f-theme-pad" data-key="theme.padding" placeholder="0">
+        <div class="checkbox-row">
+          <input type="checkbox" id="f-theme-supp" data-key="theme.suppress_app_title">
+          <label for="f-theme-supp">suppress_app_title (WT doesn't override our title)</label>
+        </div>
+        <label for="f-theme-launch">launch_mode</label>
+        <select id="f-theme-launch" data-key="theme.launch_mode">
+          <option value="focus">focus (frame-less / no-titlebar / no-tab-row)</option>
+          <option value="default">default</option>
+          <option value="maximized">maximized</option>
+          <option value="fullscreen">fullscreen</option>
+        </select>
       </fieldset>
       <fieldset>
         <legend>theme.font</legend>

usr/share/mios/mios.toml

@@ -1308,10 +1308,22 @@ frame_height        = 19      # rows - 1 -- dashboard box max height
 # oh-my-posh renderer, GTK/Adwaita, KDE Plasma) read.
 # ----------------------------------------------------------------------------
 [theme]
+# GLOBAL MiOS terminal defaults -- per operator: "the MiOS app/terminal
+# is acrylic set to on GLOBALLY AND SET TO 50 PERCENT TRANSPARENCY!!!!
+# FRAME-LESS/BORDER-LESS/SCROLL-BAR-LESS, ETC--ETC!!! GLOBAL DEFAULTS".
+# Every WT MiOS / MiOS-DEV profile + every mios-launch.ps1 invocation
+# applies these. Get-MiOS.ps1's Install-MiOSTerminalProfile reads this
+# section and stamps the values into settings.json.
 mode                = "dark"             # "dark" | "light" (rare; vendor=dark)
-acrylic             = true               # WT background acrylic ON
-opacity             = 0.85               # 0.0 transparent .. 1.0 opaque
-cursor_shape        = "filledBox"        # WT cursorShape
+acrylic             = true               # WT useAcrylic ON
+opacity             = 50                 # WT opacity 0..100 (50 = 50% transparency)
+system_backdrop     = "acrylic"          # WT 1.18+ per-profile backdrop
+cursor_shape        = "bar"              # WT cursorShape
+scrollbar_state     = "hidden"           # no scrollbar -- frame uses every col
+padding             = "0"                # zero padding -- frame flush to edges
+suppress_app_title  = true               # WT doesn't override our title
+launch_mode         = "focus"            # frame-less / border-less / no-titlebar / no-tab-row
+disable_animations  = false              # keep tab-fade / acrylic-recompute live
 
 [theme.font]
 family              = "GeistMono Nerd Font Mono"