If you like colors,buy this theme
Enhance your Odoo experience with this completely rewritten backend theme for Odoo 11.
Odoo Backend Theme
Xao Xao Backend Theme Button Collapse Left Panel
Odoo 11.0 Community Backend Theme (based on Openworx Theme)
Odoo + AdminLTE + LOVE = CooLTEve
Enterprise feel on Odoo Community
Odoo 11 Fabric Theme
Customizable Backend Theme Based on Material Design
Fusion backend theme module provides the fascility for customize backend interface
If you a bored,try this theme
Hide Website Header Footer
Odoo 11.0 community backend theme
Odoo 11 Light Materials Backend
Odoo 11 Light Materials Backend for Enterprise
If want more space, use this theme
If you like blue,try this backend theme
Manon: A clean elegant user interface designed for Odoo administrative interface.