curl --request GET \
  --url https://{tenant}.cubecloud.dev/api/v1/users/embed-theme \
  --header 'Authorization: <api-key>'

{
  "analyticsChat": {
    "backgroundColor": "<string>",
    "chatInput": {
      "backgroundColor": "<string>",
      "borderColor": "<string>"
    }
  },
  "chat": {
    "inputColor": "<string>"
  },
  "font": "<string>",
  "primaryColor": "<string>"
}