Edit file File name : block.json Content :{ "$schema": "https://schemas.wp.org/trunk/block.json", "apiVersion": 3, "name": "core/query-title", "title": "Query Title", "category": "theme", "description": "Display the query title.", "textdomain": "default", "attributes": { "type": { "type": "string" }, "textAlign": { "type": "string" }, "level": { "type": "number", "default": 1 }, "levelOptions": { "type": "array" }, "showPrefix": { "type": "boolean", "default": true }, "showSearchTerm": { "type": "boolean", "default": true } }, "supports": { "align": [ "wide", "full" ], "html": false, "color": { "gradients": true, "__experimentalDefaultControls": { "background": true, "text": true } }, "spacing": { "margin": true, "padding": true }, "typography": { "fontSize": true, "lineHeight": true, "__experimentalFontFamily": true, "__experimentalFontStyle": true, "__experimentalFontWeight": true, "__experimentalLetterSpacing": true, "__experimentalTextTransform": true, "__experimentalTextDecoration": true, "__experimentalDefaultControls": { "fontSize": true } }, "interactivity": { "clientNavigation": true }, "__experimentalBorder": { "radius": true, "color": true, "width": true, "style": true, "__experimentalDefaultControls": { "radius": true, "color": true, "width": true, "style": true } } }, "style": "wp-block-query-title" } Save