app-odoo/app_web_enterprise/views/webclient_templates.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <!-- 企业版变色   -->
    <template id="app_layout" inherit_id="web.layout" name="app Web layout">
        <xpath expr="//meta[last()]" position="after">
            <meta name="mobile-web-app-capable" content="yes"/>
            <!-- Windows Phone -->
            <meta name="msapplication-navbutton-color" t-att-content="'#242733' if request.cookies.get('color_scheme') == 'dark' else '#00796B'"/>
            <meta name="msapplication-TileColor" t-att-content="'#242733' if request.cookies.get('color_scheme') == 'dark' else '#00796B'"/>
            <!-- iOS Safari -->
            <meta name="theme-color" t-att-content="'#242733' if request.cookies.get('color_scheme') == 'dark' else '#00796B'"/>
        </xpath>
    </template>
<!--    <template id="replace_theme_color" name="Replace theme color" inherit_id="web.webclient_bootstrap">-->
<!--        <xpath expr="//meta[@name='theme-color']" position="replace">-->
<!--            <meta name="theme-color" content="#875A7B"/>-->
<!--            &lt;!&ndash; Windows Phone &ndash;&gt;-->
<!--            <meta name="msapplication-navbutton-color" content="#00796B"/>-->
<!--            &lt;!&ndash; iOS Safari &ndash;&gt;-->
<!--            <meta name="apple-mobile-web-app-capable" content="yes"/>-->
<!--            <meta name="theme-color" content="#875A7B" media="(prefers-color-scheme: light)"/>-->
<!--            <meta name="theme-color" content="#242733" media="(prefers-color-scheme: dark)"/>-->
<!--        </xpath>-->
<!--    </template>-->
</odoo>