Replace the application theme

PUT /v1/branding/applications/{application_id} · permission branding:write

Replaces the whole theme draft of the scope; tokens missing from the body are cleared. {"theme":{}} clears the scope. If-Match carries this scope's ETag (from the matching GET), not the environment's.

Request

Field	Type	Required	Description
`application_id`	path	yes	`app_…` id.
`If-Match`	header	yes	The `ETag` of the draft as last read (`"0"` if never written). Missing: `428`; stale: `412`.
`theme`	object	yes	Full `BrandingTheme` of the scope.

Response

200 OK with the scope's theme draft and its ETag (each scope has its own version).

{
  "theme": {"logo": "logo_acme", "light": {"color": {"primary": "#0a3d91"}}},
  "updated_at": "2026-10-05T09:30:00.123456Z"
}

Errors

HTTP	code	When
400	`unknown_field`	The body has an unknown field or is not a JSON object.
404	`not_found`	The application does not exist in this environment, or the id is malformed.
412	`precondition_failed`	`If-Match` does not match the current version of the draft.
422	`validation_failed`	A token value is invalid (`invalid_value`, `out_of_range`, `unknown_token`); `pointer` names the token, e.g. `/theme/light/color/primary`.
428	`precondition_required`	The `If-Match` header is missing.
401	`unauthenticated`	The credential is missing, invalid or revoked.
403	`insufficient_permissions`	The credential lacks the required permission.
429	`rate_limited`	The rate limit was exceeded; retry after the `Retry-After` period.
503	`service_unavailable`	A dependency is temporarily unavailable; retry after the `Retry-After` period.

Example

curl -X PUT https://api.eu.keenauth.com/v1/branding/applications/app_01jbexample0000000000000000 \
  -H "Authorization: Bearer $KEENAUTH_SECRET_KEY" \
  -H "Content-Type: application/json" \
  -H 'If-Match: "1"' \
  -d '{"theme":{"logo":"logo_acme","light":{"color":{"primary":"#0a3d91"}}}}'