odoo-extras/oerp_develop_test_mode/views/environment_data.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2015 Francesco OpenCode Apruzzese <cescoap@gmail.com>
     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
<odoo noupdate="1">

<!-- Add ribbon name default configuration parameter -->
<record id="default_ribbon_name" model="ir.config_parameter">
    <field name="key">ribbon.name</field>
    <field name="value"><![CDATA[TEST<br/>({db_name})]]></field>
</record>

<!-- Add ribbon color configuration parameter -->
<record id="set_ribbon_color" model="ir.config_parameter">
    <field name="key">ribbon.color</field>
    <field name="value">#f0f0f0</field>
</record>

<!-- Add ribbon background color configuration parameter -->
<record id="set_ribbon_background_color" model="ir.config_parameter">
    <field name="key">ribbon.background.color</field>
    <field name="value">rgba(255,0,0,.6)</field>
</record>

</odoo>