[BUG] Tab color of active tab in inactive view is unknown

[alankilborn]

Is there an existing issue for this?

• I have searched the existing issues

Description of the Issue

When a tab in the inactive view has color, that color is not known to the user because the tab visually appears like a non-colored tab.

Steps To Reproduce

1. In a fresh N++, create new 1, new 2, new 3, new 4 and new 5 tabs
2. Color each tab (except new 5) with the same color number as its tab title, e.g. tab new 1 gets "color 1", etc., via View (menu) > Tab > Apply Color ...
3. Move documents new 3 and new 4 to the "other" (secondary or sub) view
4. Experiment with making the tabs active, in turn.

Current Behavior

Note that when either new 3 or new 4 is the active document in the active secondary view:

• the appearance of new 5 (an uncolored tab) in the non-active view, when it is the active tab in that view:
  

• the appearance of new 2 (a colored tab) in the non-active view, when it is the active tab in that view:
  

These tabs appear visually the same, even though one is colored and one is not.

The bottom line: User has no way to know that new 2 is a tab that has had color applied to it in this situation.

Expected Behavior

Some way to know the color of the active tab in the non-active view.

Debug Information

Notepad++ v8.6.7   (64-bit)
Build time : May 12 2024 - 20:04:00
Path : C:\NotepadPlusPlus\Misc\_NoBackup\Releases\npp.8.6.7\npp.8.6.7.portable.x64\notepad++.exe
Command Line : -multiInst
Admin mode : OFF
Local Conf mode : ON
Cloud Config : OFF
Periodic Backup : ON
OS Name : Windows 11 Pro (64-bit)
OS Version : 23H2
OS Build : 22631.3593
Current ANSI codepage : 1252
Plugins : 
    mimeTools (3.1)
    NppConverter (4.6)
    NppExport (0.4)

Anything else?

No response