newsupernova/vendor/magento/module-theme/etc/db_schema.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<schema xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:Setup/Declaration/Schema/etc/schema.xsd">
    <table name="theme" resource="default" engine="innodb" comment="Core theme">
        <column xsi:type="int" name="theme_id" padding="10" unsigned="true" nullable="false" identity="true"
                comment="Theme identifier"/>
        <column xsi:type="int" name="parent_id" padding="11" unsigned="false" nullable="true" identity="false"
                comment="Parent Id"/>
        <column xsi:type="varchar" name="theme_path" nullable="true" length="255" comment="Theme Path"/>
        <column xsi:type="varchar" name="theme_title" nullable="false" length="255" comment="Theme Title"/>
        <column xsi:type="varchar" name="preview_image" nullable="true" length="255" comment="Preview Image"/>
        <column xsi:type="boolean" name="is_featured" nullable="false" default="false" comment="Is Theme Featured"/>
        <column xsi:type="varchar" name="area" nullable="false" length="255" comment="Theme Area"/>
        <column xsi:type="smallint" name="type" padding="6" unsigned="false" nullable="false" identity="false"
                comment="Theme type: 0:physical, 1:virtual, 2:staging"/>
        <column xsi:type="text" name="code" nullable="true" comment="Full theme code, including package"/>
        <constraint xsi:type="primary" referenceId="PRIMARY">
            <column name="theme_id"/>
        </constraint>
    </table>
    <table name="theme_file" resource="default" engine="innodb" comment="Core theme files">
        <column xsi:type="int" name="theme_files_id" padding="10" unsigned="true" nullable="false" identity="true"
                comment="Theme files identifier"/>
        <column xsi:type="int" name="theme_id" padding="10" unsigned="true" nullable="false" identity="false"
                comment="Theme Id"/>
        <column xsi:type="varchar" name="file_path" nullable="true" length="255" comment="Relative path to file"/>
        <column xsi:type="varchar" name="file_type" nullable="false" length="32" comment="File Type"/>
        <column xsi:type="longtext" name="content" nullable="false" comment="File Content"/>
        <column xsi:type="smallint" name="sort_order" padding="6" unsigned="false" nullable="false" identity="false"
                default="0" comment="Sort Order"/>
        <column xsi:type="boolean" name="is_temporary" nullable="false" default="false" comment="Is Temporary File"/>
        <constraint xsi:type="primary" referenceId="PRIMARY">
            <column name="theme_files_id"/>
        </constraint>
        <constraint xsi:type="foreign" referenceId="THEME_FILE_THEME_ID_THEME_THEME_ID" table="theme_file" column="theme_id"
                    referenceTable="theme" referenceColumn="theme_id" onDelete="CASCADE"/>
    </table>
    <table name="design_change" resource="default" engine="innodb" comment="Design Changes">
        <column xsi:type="int" name="design_change_id" padding="11" unsigned="false" nullable="false" identity="true"
                comment="Design Change Id"/>
        <column xsi:type="smallint" name="store_id" padding="5" unsigned="true" nullable="false" identity="false"
                default="0" comment="Store Id"/>
        <column xsi:type="varchar" name="design" nullable="true" length="255" comment="Design"/>
        <column xsi:type="date" name="date_from" comment="First Date of Design Activity"/>
        <column xsi:type="date" name="date_to" comment="Last Date of Design Activity"/>
        <constraint xsi:type="primary" referenceId="PRIMARY">
            <column name="design_change_id"/>
        </constraint>
        <constraint xsi:type="foreign" referenceId="DESIGN_CHANGE_STORE_ID_STORE_STORE_ID" table="design_change"
                    column="store_id" referenceTable="store" referenceColumn="store_id" onDelete="CASCADE"/>
        <index referenceId="DESIGN_CHANGE_STORE_ID" indexType="btree">
            <column name="store_id"/>
        </index>
    </table>
</schema>