Within Teamwork Projects you can upload your own custom CSS to affect how your Teamwork Projects site looks.
CSS (Custom Style Sheets) is used to define styles for your web pages, including the design, layout and variations in display for different devices and screen sizes.
Note: This feature is only available on the Professional and Business plans and only the site owner or site admins can enable integrations on a site level.
To enable CSS, select 'Settings' to the top right of your Teamwork Site, then choose 'Integrations'.
In this section, you'll see the option for 'Custom Styles', select 'Manage CSS':
If you click the 'Manage CSS' button you'll see a screen where you can select 'Enable custom CSS for my account'. You can then paste your code into the text area:
Select 'Save Settings' to apply your custom style sheet.
For more information see: Changing the color theme on your site