How to allow to add gradients to core/heading block?

is there a way to add gradients support for background in the core/heading block?

I’ve tried to

• extend settings.supports with gradients: true
• add gradients to theme json:

"blocks": {
      "core/heading": {
        "color": {
          "gradients": [
            {
              "slug": "dark-gradient-with-stripes",
              "name": "Dark gradient with stripes",
              "gradient": "linear-gradient(to left bottom, rgba(125, 134, 152, .2) 15%, rgba(0, 0, 0, 0) 92.5%)"
            }
          ]
        }
      }
    },

Your help is really appreciated.