Typefi Writer markup is added to a Microsoft Word document when you insert Typefi components (such as Sections or Elements). Writer markup, usually displayed as tags (also referred to as fields) in Word, is formatted to stand out from regular Word content.
Each Writer markup style is listed with a TPS prefix in Word's Styles dialogue. You can customise the markup styles—just like any other style—without affecting the markup behaviour (for example, you can make the text a different colour).
If you don't like the style changes you made, go to Typefi → Tags → Reset tag appearance to reset the styles applied to Typefi tags to their default settings.