curl --request POST \
  --url https://api.kameleoon.com/themes/add-projects/{themeId} \
  --header 'Content-Type: application/json' \
  --data '[
  123
]'

{
  "projectIds": [
    123
  ],
  "colors": [
    {
      "id": "<string>",
      "value": "<string>"
    }
  ],
  "components": [
    "<string>"
  ],
  "creationDate": "2023-11-07T05:31:56Z",
  "customFonts": [
    {
      "fontFamily": "<string>",
      "fontSrc": "<string>",
      "fontWeights": [
        "<string>"
      ],
      "id": "<string>",
      "importSrc": "<string>"
    }
  ],
  "dateModified": "2023-11-07T05:31:56Z",
  "description": "<string>",
  "id": 123,
  "name": "<string>",
  "selectedFonts": [
    {
      "id": "<string>"
    }
  ],
  "tags": [
    "<string>"
  ],
  "widgetIds": [
    123
  ]
}