Hi, we have developed some free backend themes to help community and individual people who don't like default theme from odoo You can download these themes from following links and make changes as per your personal and business needs: https://www.odoo.com/apps/themes/browse?search=odoobiz https://www.odoo.com/apps/themes/10.0/estate_backend_theme/ https://www.odoo.com/apps/themes/10.0/sarahah_backend_theme/ https://www.odoo.com/apps/themes/10.0/poil_backend_theme/ Thanks!!! Enjoy Programming :)