understrap/inc/editor-color-palette.json

{"--bs-blue":"#0d6efd","--bs-indigo":"#6610f2","--bs-purple":"#5533ff","--bs-pink":"#d63384","--bs-red":"#dc3545","--bs-orange":"#fd7e14","--bs-yellow":"#ffc107","--bs-green":"#198754","--bs-teal":"#20c997","--bs-cyan":"#0dcaf0","--bs-white":"#fff","--bs-gray":"#6c757d","--bs-gray-dark":"#343a40"}