Customize tab styling for all tabs

At a global level for all tabs on your book, you can change the tab title color, the bar under the title that indicates which tab is selected, and the tab fill color.

1. Open a book that has at least one tab.
2. Click the Properties icon.
   
3. Open the Tabs category.
4. Under Master tab styling, select a color for tab titles.
5. Use Selected bar color to choose a color for the bar that indicates which tab is selected.
6. Select a fill color for the tabs.
   Tip: You can also click Select custom color to open the color picker instead of choosing from the default color options.