{ "apiVersion": 2, "name": "core/button", "category": "design", "parent": [ "core/buttons" ], "attributes": { "url": { "type": "string", "source": "attribute", "selector": "a", "attribute": "href" }, "title": { "type": "string", "source": "attribute", "selector": "a", "attribute": "title" }, "text": { "type": "string", "source": "html", "selector": "a" }, "linkTarget": { "type": "string", "source": "attribute", "selector": "a", "attribute": "target" }, "rel": { "type": "string", "source": "attribute", "selector": "a", "attribute": "rel" }, "placeholder": { "type": "string" }, "borderRadius": { "type": "number" }, "style": { "type": "object" }, "backgroundColor": { "type": "string" }, "textColor": { "type": "string" }, "gradient": { "type": "string" } }, "supports": { "anchor": true, "align": true, "alignWide": false, "reusable": false, "__experimentalSelector": ".wp-block-button > a" } }