更改树视图odoo 9中周六和周日日期字段的颜色

{
    'name': 'Custom Module',
    'version': '1.0',
    'summary': 'Change color of date fields in tree view',
    'description': 'Change the color of date fields in tree view for Saturdays and Sundays',
    'author': 'Your Name',
    'depends': ['base', 'web'],
    'data': [
        'views/assets.xml',
    ],
    'installable': True,
    'application': False,
    'auto_install': False,
}

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data>
        <template id="assets_backend" name="custom_module assets" inherit_id="web.assets_backend">
            <xpath expr="." position="inside">
                <script type="text/javascript" src="/custom_module/static/src/js/custom_script.js"></script>
                <link rel="stylesheet" href="/custom_module/static/src/css/custom_style.css"/>
            </xpath>
        </template>
    </data>
</odoo>

odoo.define('custom_module.custom_script', function (require) {
    "use strict";

    var ListRenderer = require('web.ListRenderer');

    ListRenderer.include({
        _renderBodyCell: function (record, node, colIndex, options) {
            var $td = this._super.apply(this, arguments);
            var field = node.attrs.name;
            var value = record.data[field];

            if (field === 'date_field' && (value.getDay() === 6 || value.getDay() === 0)) {
                $td.addClass('custom_weekend_color');
            }

            return $td;
        },
    });
});

.custom_weekend_color {
    color: red !important;
}