Fix Custom Word Theme Fonts and Colors Not Loading on Mac
Question details
The user is unable to get custom Microsoft Word themes, including specific fonts and colors, to display correctly on macOS Ventura.

- Product
- Microsoft Word
- Device & OS
- macOS Ventura
- Scenario
- Attempting to apply a customized document theme (.thmx file) to a Word document on a Mac.
- Observed behavior
- The custom theme fails to load properly, and the specified custom fonts and colors do not appear in the document, despite being installed.
Before troubleshooting, ensure that all custom fonts associated with your theme are properly installed and validated in the macOS Font Book, and that you have completely restarted Microsoft Word.
Manually Browse and Load the Custom Theme
Force Word to recognize and apply the custom theme by locating the .thmx file directly through the Design tab.
Sometimes Microsoft Word for Mac fails to automatically detect custom themes placed in the default templates folder. Manually browsing for the file forces the application to load the specific color and font parameters.
Launch Microsoft Word, open your document, and navigate to the 'Design' tab on the top ribbon.
Click on the 'Themes' button on the far left. From the dropdown menu, select 'Browse for Themes'.
Navigate to the location where your custom .thmx file is saved, select it, and click 'Open'. The theme should now load and appear under the 'Custom' section of the Themes menu.

Isolate Document and Device Issues
Test the theme in a fresh document or on a different device to determine if the issue is a corrupted file or a localized macOS Ventura glitch.
Try WPS Office for Seamless Document Formatting on Mac
If Microsoft Word continues to struggle with custom themes and fonts on macOS Ventura, consider switching to WPS Office. It provides a highly compatible, lightweight environment for editing Word documents without frustrating formatting glitches.
- 1. Download for Mac: Visit the official WPS Office website and download the free version for macOS.
- 2. Install the Application: Run the installer and follow the on-screen instructions to set up WPS Office on your Mac.
- 3. Open Your Document: Launch WPS Writer and open your .docx files to experience seamless formatting and font rendering.

Frequently Asked Questions
Why are my custom fonts not showing up in Word for Mac?
Custom fonts may not show up if they are not installed properly in the macOS Font Book, if there is a font cache corruption, or if the fonts were installed only for a specific user rather than system-wide. Try validating the fonts in Font Book and restarting your Mac.
Where are Word themes stored on a Mac?
By default, custom themes in Word for Mac are usually saved in the hidden User Library folder under: ~/Library/Group Containers/UBF8T346G9.Office/User Content/Themes.
Can I use a .thmx theme file created on Windows in Word for Mac?
Yes, .thmx files are fully cross-platform. However, if your theme relies on custom fonts, you must ensure those exact fonts are manually installed on the Mac, as they are not embedded directly into the theme file.




