paperless-ngx/src-ui/src/app/components/manage/logs/logs.component.scss

.log-entry-10 {
  color: lightslategray !important;
}

.log-entry-30 {
  color: yellow !important;
}

.log-entry-40 {
  color: red !important;
}

.log-entry-50 {
  color: lightcoral !important;
  font-weight: bold;
}