Currently, when an open file contains a XAML error, the Document's Tab name is shown in red in the Open Pages bar at the top of the application window.

However, in cases where there are more documents than fit in the horizontal width of a window, Document Tabs that don't fit are moved into a Document '3-Dot' menu where all open Documents can be selected from.

In this Overflow Menu however, Documents containing errors do not display the same red 'error' colouring as in the tabs.

If a Document containing an error is open, but not in view as a Tab at the top of the window, this makes it difficult to identify open, but not visible Documents that contain errors.

Repro Steps:

1) Open any Project in Studio, select any file from the Assets Panel, open it in VSCode, intentionally introduce incorrect XAML syntax into the document, then save the Document.

2) Return to Studio.
Observe how the Document opened in Step 1) is displaying a red XAML Error colouring in the application's Document bar.

3) Open (or create) further XAML files until the Document manipulated in Step 1) is 'pushed out' of the Document Bar, and into the 'Open Document Overflow' 3-Dot Menu in the upper right of the application window.

4) Click on the Document Overflow 3-Dot Menu.

Observe how the Document manipulated in Step 1) doesn't have any indicator that it contains XAML errors.

Expected Results: Documents open in the Application, but pushed into the Document Overflow Menu receive the same red colour coding in the Document Overflow Menu, as when visible in the visible Document Bar.