diff --git a/docs/superpowers/notes/2026-09-28-etappe-4-divi-formate.md b/docs/superpowers/notes/2026-09-28-etappe-4-divi-formate.md
index fbb1dc4..12918a9 100644
--- a/docs/superpowers/notes/2026-09-28-etappe-4-divi-formate.md
+++ b/docs/superpowers/notes/2026-09-28-etappe-4-divi-formate.md
@@ -18,6 +18,16 @@ Geprüft gegen Divi 5.15.1 (installiert, freigegeben):
   - Das Mapping (`Conversion::get_preset_attrs_mapping("divi/button")`) liefert `attrName`, `preset` und bei Bedarf `subName`. `preset` ist nicht immer eine Liste: gesehen wurden `"meta"`, `"content"` (String) und `["html"]` (Array).
 - Keine weiteren Abweichungen zu §3, außer den oben genannten.
 
+## Nachtrag Divi 5.15.1 – Farben und Variablen (Etappe 4c, 2026-10-19)
+
+Geprüft gegen den installierten Quelltext `includes/builder-5/server/Packages/GlobalData/GlobalData.php` (5.15.1):
+
+- **Farben unverändert:** `set_global_colors(array $data, $already_sanitized = false): void` mischt mit `true` (`array_merge`), ersetzt mit `false` und bereinigt dann selbst; die fünf Hauptfarben gehen über `et_update_option()` in `et_divi` und werden aus den Daten entfernt; danach `remove_static_resources('all', 'all', true)`. `sanitize_global_colors_data(array $data): array` ist öffentlich und verlangt, dass `usedInPosts` ein Array ist.
+- **`get_customizer_colors()` hat einen `static`-Cache ohne Reset.** Nach einer Änderung der Hauptfarbe liefert `get_global_colors()` im selben Request noch den alten Wert (`$_cached_data` wird zurückgesetzt, der `static` nicht). LIT MCP liest die fünf Hauptfarben deshalb für das Zurücklesen aus `et_divi` (`GlobalColorsAdapter::read()`).
+- **Variablen: neue Signatur und Prüfungen.** `set_global_variables(array $data, ?array $expected_variables = null): ?WP_Error` kehrt weiterhin still zurück, wenn `edit_theme_options` oder `variables_manager` fehlt; sonst läuft es unter einer MySQL-Sperre (`GET_LOCK`), prüft optional den erwarteten Bestand (`global_variables_stale`, 409), verlangt, dass **jede gespeicherte `gvid-`-ID im neuen Bestand vorkommt** (`validate_global_variable_ids()` → `global_variable_ids_missing`, 400) und prüft geänderte Einträge (`validate_global_variable_changes()`: `status` `active`|`archived`, aktive Variablen mit nicht leerem `value`). **Folge: Variablen lassen sich über Divis Funktionen nicht löschen, nur archivieren** (Ruling V1 des Plans 4c).
+- **Neuer Typ `gradients`** (`GLOBAL_VARIABLE_TYPES = numbers, strings, images, links, fonts, gradients`); `strings` und `gradients` behalten ihren Wert zeichengetreu. `get_global_variables()` liefert zusätzlich die leere Gruppe `colors`, wandelt Objekt-Gruppen in Arrays und fügt `allowedActions` und die Customizer-Schriften hinzu (jede Gruppe als `stdClass`); beim Zurückschreiben bleiben nur Speicherformat-Felder.
+- **Archivierte Variablen:** `_sort_global_variable_snapshot()` behandelt `order` archivierter Variablen als `''`; der Builder setzt beim Archivieren `order: null`, das Sanitize macht daraus `''`.
+
 ## 0. Grundlagen: wo Divi speichert
 
 `et_get_option()`/`et_update_option()` (`epanel/custom_functions.php:211`, `:272`) haben drei Ziele:
diff --git a/docs/superpowers/notes/2026-10-18-divi-faehigkeiten.md b/docs/superpowers/notes/2026-10-18-divi-faehigkeiten.md
index ef34c5e..af15f58 100644
--- a/docs/superpowers/notes/2026-10-18-divi-faehigkeiten.md
+++ b/docs/superpowers/notes/2026-10-18-divi-faehigkeiten.md
@@ -91,4 +91,4 @@ beeinflussen, ohne dass ein Test ihn bräuchte.
 
 - Der Admin-Hinweis berechnet den Zustand auf jeder Admin-Seite (Reflection und Dateihashes je Aufruf); bei Bedarf
   kurzlebig cachen.
-- `DesignArea::feature()` braucht für Farben, Variablen und Theme-Optionen später eine eigene Fähigkeit (Etappe 4c/4d).
+- `DesignArea::feature()`: Farben (`color-write`) und Variablen (`variable-write`) haben seit Etappe 4c eigene Fähigkeiten; Theme-Optionen bekommen ihre mit 4d.
diff --git a/docs/superpowers/specs/2026-10-16-etappe-4-designsystem-design.md b/docs/superpowers/specs/2026-10-16-etappe-4-designsystem-design.md
index 3c68db9..ea3ba81 100644
--- a/docs/superpowers/specs/2026-10-16-etappe-4-designsystem-design.md
+++ b/docs/superpowers/specs/2026-10-16-etappe-4-designsystem-design.md
@@ -169,10 +169,10 @@ Jedes Tool nimmt **mehrere Einträge** eines Bereichs je Aufruf (ein Snapshot, e
 
 ### 7.2 `lit/divi-variables-set`
 
-- `items`: `{ id? | name?, "type": "numbers|strings|images|links|fonts", "label", "value", "status": "active"|"archived" }`, `delete: true` für echtes Löschen.
+- `items`: `{ id? | name?, "type": "numbers|strings|images|links|fonts", "label", "value", "status": "active"|"archived" }`. Echtes Löschen gibt es nicht: Divi 5.15.1 verweigert jeden Bestand, dem eine gespeicherte `gvid-`-ID fehlt (Plan 4c, Ruling V1).
 - Prüfung je Typ (Zahlen: CSS-Ausdruck ohne `;{}`, Links: URL, Bilder: Anhang-ID/URL der Mediathek, Schriften: §8.2, Strings: Text).
 - Schreiben: vollständig lesen, `stdClass` → Array, `allowedActions` und Customizer-Schriften entfernen, `set_global_variables()` (ersetzt), zurücklesen (stiller Fehlschlag bei fehlendem `variables_manager`).
-- Löschen nur unbenutzt (G5; Fundstellen auch in Presets und relativen Farben), sonst `in_use` mit Hinweis auf detach. „Archivieren“ geht immer (Divi-Verhalten).
+- Archivieren geht immer (Divi-Verhalten); der Probelauf nennt Fundstellen in Seiten, Presets und Farben als Warnung, `lit/divi-design-detach` löst die Verweise vorher (§6.8). Ein Restore behält später angelegte Variablen archiviert.
 
 ## 8. Theme-Optionen und Schriften
 
diff --git a/tests/Integration/divi-colors-variables-smoke.sh b/tests/Integration/divi-colors-variables-smoke.sh
new file mode 100755
index 0000000..7ef4ac8
--- /dev/null
+++ b/tests/Integration/divi-colors-variables-smoke.sh
@@ -0,0 +1,150 @@
+#!/usr/bin/env bash
+# End-to-end checks of Etappe 4c (global colors and variables: create, relative color, cycle, main color, archive,
+# detach on a page, snapshots, restore) through the OAuth-protected endpoint against the real Divi. Runs INSIDE the
+# DDEV web container:
+#   cd /home/janniclas/Projekte/WordPress && timeout 900 ddev exec bash wp-content/plugins/WP-LIT-MCP/tests/Integration/divi-colors-variables-smoke.sh
+# Creates colors/variables named "LIT Smoke <run> …" and one draft page. The EXIT trap puts the options et_divi (colors,
+# customizer colors) and et_divi_global_variables back to what they were and deletes the page by exact ID.
+set -euo pipefail
+cd /var/www/html
+# shellcheck source=lib.sh
+source wp-content/plugins/WP-LIT-MCP/tests/Integration/lib.sh
+
+ADMIN_LOGIN=$(wp user list --role=administrator --field=user_login | head -1)
+RUN="$(date +%s)-$$"
+PREFIX="LIT Smoke $RUN"
+ORIGINAL_THEME=$(wp option get et_divi --format=json 2>/dev/null || echo '{}')
+ORIGINAL_VARIABLES=$(wp option get et_divi_global_variables --format=json 2>/dev/null || echo '{}')
+PAGE_ID=""
+
+cleanup() {
+  printf '%s' "$LIT_THEME" | wp option update et_divi --format=json >/dev/null 2>&1 \
+    || echo "WARN: et_divi not restored"
+  printf '%s' "$LIT_VARIABLES" | wp option update et_divi_global_variables --format=json >/dev/null 2>&1 \
+    || echo "WARN: global variables not restored"
+  wp eval 'ET_Core_PageResource::remove_static_resources("all", "all", true);' >/dev/null 2>&1 || true
+  if [ -n "$PAGE_ID" ]; then wp post delete "$PAGE_ID" --force >/dev/null 2>&1 || true; fi
+  cleanup_app_passwords_for "$ADMIN_LOGIN"
+}
+export LIT_THEME="$ORIGINAL_THEME" LIT_VARIABLES="$ORIGINAL_VARIABLES"
+trap 'rc=$?; cleanup; guard_exit "$rc" || exit $?' EXIT
+
+connect "$ADMIN_LOGIN"
+
+# confirm <tool> <input JSON>: dry run must answer confirm_required; then the confirmed call; prints the result.
+confirm() {
+  local dry rev
+  dry=$(ability "$1" "$2")
+  [ "$(error_code "$dry")" = "confirm_required" ] || fail "$1 dry run: $dry"
+  rev=$(echo "$dry" | jq -r '.__error | fromjson | .design_rev')
+  ability "$1" "$(echo "$2" | jq -c --arg r "$rev" '. + {confirm: true, design_rev: $r}')"
+}
+stored_color() { # $1 = label -> the stored color value
+  wp eval "foreach (ET\Builder\Packages\GlobalData\GlobalData::get_global_colors() as \$c) { if ((\$c['label'] ?? '') === '$1') { echo \$c['color']; } }"
+}
+color_id() { # $1 = label
+  wp eval "foreach (ET\Builder\Packages\GlobalData\GlobalData::get_global_colors() as \$id => \$c) { if ((\$c['label'] ?? '') === '$1') { echo \$id; } }"
+}
+variable_field() { # $1 = label, $2 = field
+  wp eval "foreach (ET\Builder\Packages\GlobalData\GlobalData::get_global_variables() as \$items) { foreach ((array) \$items as \$v) { \$v = (array) \$v; if ((\$v['label'] ?? '') === '$1') { echo \$v['$2'] ?? ''; } } }"
+}
+
+# 1. Create a color: dry run, confirm, stale design_rev, stored in Divi.
+NEW=$(jq -cn --arg l "$PREFIX Holz" '{items: [{label: $l, color: "#5b3a29"}]}')
+DONE=$(confirm lit/divi-colors-set "$NEW")
+[ "$(echo "$DONE" | jq -r '.ok')" = "true" ] || fail "colors create: $DONE"
+COLORS_SNAPSHOT=$(echo "$DONE" | jq -r '.snapshot_id')
+[ "$(stored_color "$PREFIX Holz")" = "#5b3a29" ] || fail "color not stored"
+STALE=$(ability lit/divi-colors-set "$(echo "$NEW" | jq -c '.items[0].label += " 2" | . + {confirm: true, design_rev: "veraltet"}')")
+[ "$(error_code "$STALE")" = "rev_mismatch" ] || fail "stale design_rev: $STALE"
+pass "color created ($COLORS_SNAPSHOT), stale design_rev refused"
+
+# 2. A relative color from a placeholder; a cycle is refused.
+REL=$(jq -cn --arg l "$PREFIX Holz hell" --arg b "{{color:$PREFIX Holz}}" \
+  '{items: [{label: $l, color: $b, relative: {lightness: 20}}]}')
+DONE=$(confirm lit/divi-colors-set "$REL")
+[ "$(echo "$DONE" | jq -r '.ok')" = "true" ] || fail "relative color: $DONE"
+BASE_ID=$(color_id "$PREFIX Holz")
+stored_color "$PREFIX Holz hell" | grep -q "$BASE_ID" || fail "relative color does not reference $BASE_ID"
+CYCLE=$(jq -cn --arg l "$PREFIX Holz" --arg b "{{color:$PREFIX Holz hell}}" \
+  '{items: [{id: $l, color: $b, relative: {lightness: 5}}]}')
+[ "$(error_code "$(ability lit/divi-colors-set "$CYCLE")")" = "validation_failed" ] || fail "cycle not refused"
+pass "relative color stored, cycle refused"
+
+# 3. A main color changes the customizer option and reads back at once.
+OLD_PRIMARY=$(wp eval 'echo et_get_option("accent_color", "#2ea3f2");')
+NEW_PRIMARY="#123456"; [ "$OLD_PRIMARY" = "$NEW_PRIMARY" ] && NEW_PRIMARY="#654321"
+DONE=$(confirm lit/divi-colors-set "$(jq -cn --arg c "$NEW_PRIMARY" '{items: [{id: "primary", color: $c}]}')")
+[ "$(echo "$DONE" | jq -r '.ok')" = "true" ] || fail "main color: $DONE"
+[ "$(wp eval 'echo et_get_option("accent_color");')" = "$NEW_PRIMARY" ] || fail "accent_color not written"
+pass "main color written to the customizer option"
+
+# 4. Deactivating a color is a status change, not a removal.
+DONE=$(confirm lit/divi-colors-set "$(jq -cn --arg l "$PREFIX Holz hell" '{items: [{id: $l, status: "inactive"}]}')")
+[ "$(echo "$DONE" | jq -r '.ok')" = "true" ] || fail "deactivate: $DONE"
+wp eval "foreach (ET\Builder\Packages\GlobalData\GlobalData::get_global_colors() as \$c) { if ((\$c['label'] ?? '') === '$PREFIX Holz hell') { exit(\$c['status'] === 'inactive' ? 0 : 1); } } exit(1);" \
+  || fail "color not inactive"
+pass "color deactivated"
+
+# 5. Variables: create a number variable, archive it (never deleted, V1).
+VAR=$(jq -cn --arg l "$PREFIX Radius" '{items: [{type: "numbers", label: $l, value: "12px"}]}')
+DONE=$(confirm lit/divi-variables-set "$VAR")
+[ "$(echo "$DONE" | jq -r '.ok')" = "true" ] || fail "variable create: $DONE"
+VARIABLES_SNAPSHOT=$(echo "$DONE" | jq -r '.snapshot_id')
+[ "$(variable_field "$PREFIX Radius" value)" = "12px" ] || fail "variable not stored"
+VAR_ID=$(variable_field "$PREFIX Radius" id)
+case "$VAR_ID" in gvid-??????????) ;; *) fail "variable id format: $VAR_ID" ;; esac
+pass "variable created ($VARIABLES_SNAPSHOT, $VAR_ID)"
+
+# 6. A page uses the variable; detach replaces the reference by its value.
+PAGE_ID=$(wp post create --post_type=page --post_status=draft --post_title="$PREFIX Seite" --post_content="$(wp eval "
+  \$ref = '\$variable(' . wp_json_encode(['type' => 'content', 'value' => ['name' => '$VAR_ID', 'settings' => new stdClass()]]) . ')\$';
+  \$text = ['content' => ['innerContent' => ['desktop' => ['value' => 'Hallo']]],
+            'module' => ['decoration' => ['spacing' => ['desktop' => ['value' => ['padding' => ['top' => \$ref]]]]]]];
+  echo serialize_block(['blockName' => 'divi/placeholder', 'attrs' => [], 'innerBlocks' => [
+    ['blockName' => 'divi/section', 'attrs' => [], 'innerBlocks' => [
+      ['blockName' => 'divi/row', 'attrs' => [], 'innerBlocks' => [
+        ['blockName' => 'divi/column', 'attrs' => ['module' => ['decoration' => ['sizing' => ['desktop' => ['value' => ['flexType' => '24_24']]]]]], 'innerBlocks' => [
+          ['blockName' => 'divi/text', 'attrs' => \$text, 'innerBlocks' => [], 'innerHTML' => '', 'innerContent' => []],
+        ], 'innerHTML' => '', 'innerContent' => [null]],
+      ], 'innerHTML' => '', 'innerContent' => [null]],
+    ], 'innerHTML' => '', 'innerContent' => [null]],
+  ], 'innerHTML' => '', 'innerContent' => [null]]);
+")" --porcelain)
+wp post get "$PAGE_ID" --field=post_content | grep -q "$VAR_ID" || fail "page does not reference the variable"
+DETACH=$(jq -cn --arg v "$VAR_ID" --argjson p "$PAGE_ID" '{variable: $v, post_ids: [$p]}')
+DRY=$(ability lit/divi-design-detach "$DETACH")
+[ "$(error_code "$DRY")" = "confirm_required" ] || fail "detach dry run: $DRY"
+DONE=$(ability lit/divi-design-detach "$(echo "$DETACH" | jq -c '. + {confirm: true}')")
+[ "$(echo "$DONE" | jq -r '.ok')" = "true" ] || fail "detach: $DONE"
+CONTENT=$(wp post get "$PAGE_ID" --field=post_content)
+echo "$CONTENT" | grep -q "$VAR_ID" && fail "reference still in the page"
+echo "$CONTENT" | grep -q '12px' || fail "value not written into the page"
+pass "variable detached from the page (reference replaced by 12px)"
+
+# 7. Archive the variable; it stays in the option with status archived.
+DONE=$(confirm lit/divi-variables-set "$(jq -cn --arg l "$PREFIX Radius" '{items: [{id: $l, status: "archived"}]}')")
+[ "$(echo "$DONE" | jq -r '.ok')" = "true" ] || fail "archive: $DONE"
+[ "$(variable_field "$PREFIX Radius" status)" = "archived" ] || fail "variable not archived"
+pass "variable archived, not removed"
+
+# 8. Restore the variables snapshot taken before step 5: the variable created later stays, archived (V1).
+LIST=$(ability lit/divi-design-snapshots '{"area": "variables"}')
+echo "$LIST" | jq -e --arg s "$VARIABLES_SNAPSHOT" 'any(.snapshots[]; .id == $s)' >/dev/null || fail "snapshot not listed: $LIST"
+# Activate it again first: restoring while it is already archived would be a no-op without confirm_required.
+DONE=$(confirm lit/divi-variables-set "$(jq -cn --arg l "$PREFIX Radius" '{items: [{id: $l, status: "active"}]}')")
+[ "$(echo "$DONE" | jq -r '.ok')" = "true" ] || fail "reactivate: $DONE"
+[ "$(variable_field "$PREFIX Radius" status)" = "active" ] || fail "variable not active again"
+DONE=$(confirm lit/divi-design-restore "$(jq -cn --arg s "$VARIABLES_SNAPSHOT" '{snapshot_id: $s}')")
+[ "$(echo "$DONE" | jq -r '.ok')" = "true" ] || fail "variables restore: $DONE"
+[ "$(variable_field "$PREFIX Radius" status)" = "archived" ] || fail "variable lost by the restore"
+pass "variables restored, the later variable stays archived"
+
+# 9. Restore the colors snapshot taken before step 1: the colors of this run are gone, the main color is back.
+DONE=$(confirm lit/divi-design-restore "$(jq -cn --arg s "$COLORS_SNAPSHOT" '{snapshot_id: $s}')")
+[ "$(echo "$DONE" | jq -r '.ok')" = "true" ] || fail "colors restore: $DONE"
+[ -z "$(color_id "$PREFIX Holz")" ] || fail "restored colors still hold the new color"
+[ "$(wp eval 'echo et_get_option("accent_color", "#2ea3f2");')" = "$OLD_PRIMARY" ] || fail "main color not restored"
+pass "colors restored (new colors gone, main color back)"
+
+finish