Themeing suddenly stopped working

I have a simple docker-compose like so:

I mapped in a local folder in which I made a copy of the keycloak template contained in the default jar and started working on it. Somehow, I’m not in a situation where the specific REALM I’m in, is not obeying any theme settings. Realm wide or to a given client. Text changes in message properties are picked up. But images, css, etc - no.

Even weirder, I compeltely removed the mapping (and double checked by entering the container and seeing /opt/keycloak/themes empty) and removed cache just to be sure. And the effect still continues, leading me to believe something other than the …/themes folder is broke as the container has nothing in it anymore

Anyone with a tip?

version: '3.4'
services:

  keycloak_db:
    image: postgres:11.2-alpine
    environment:
        - POSTGRES_DB=keycloak
        - POSTGRES_USER=keycloak
        - POSTGRES_PASSWORD=keycloak
        - POSTGRES_ROOT_PASSWORD=keycloak
    networks:
      transit_idp:
    volumes:
      - ./data:/var/lib/postgresql/data
    user: 1000:1000


  keycloak:
    image: keycloak/keycloak:23.0
    hostname: keycloak
    environment:
      - KC_DB=postgres
      - KC_DB_PORT=5432
      - KC_DB_URL_HOST=keycloak_db
      - KC_DB_URL_DATABASE=keycloak
      - KC_DB_USERNAME=keycloak
      - KC_DB_PASSWORD=keycloak
      - PROXY_ADDRESS_FORWARDING=true
      - KEYCLOAK_LOGLEVEL=INFO
      - KEYCLOAK_ADMIN=admin
      - KEYCLOAK_ADMIN_PASSWORD=changeme-keycloak
      
    ports:
      - 8080:8080
      - 8180:8180
      - 8443:8443
    depends_on:
      - keycloak_db
    volumes:
        - ./keycloak-themes:/opt/keycloak/themes