eiru_brand/templates.xml

<openerp>
    <data>
        <!-- Assets for brand -->
        <template id="eiru_brand.assets" name="Eiru Brand" inherit_id="web.assets_backend">
            <xpath expr="." position="inside">
                <link rel="stylesheet" href="/eiru_brand/static/src/main.css" />
            </xpath>
        </template>
        <!-- Menu brand -->
        <template id="eiru_brand.menu" name="Eiru Brand" inherit_id="web.menu">
            <xpath expr="//ul[1]" position="before">
                <div class="menu_eiru_brand">
                    <img class="menu_brand_logo" src="/eiru_brand/static/img/eiru.png" alt="Eiru Software" />
                    <div>
                        <h2>Eiru</h2>
                        <h3>Software</h3>
                    </div>
                </div>
            </xpath>
        </template>
    </data>
</openerp>