Multiple problems with taskbar

Easiest to explain the problem with a screenshot (attached). I use small icons, with text labels, never combined. Instead of the text of the icon filling the space to the right, I just get blank rectangular regions (with the contrast color peeking out below).

And over on the right, where is the double up arrow? And where is the clock?

This happened immediately after upgrading from 8.1. It is the only problem I'm having with Windows 10. Unfortunately, I depend on the taskbar for much of my work, so this is really getting in the way.

I've tried every possible combination of themes, personalization, etc. Nothing fixes this.

Slartybart said:

It looks as though you have a white Taskbar, the text also probably white.

There have been color 'issues' throughout the preview, so I'm not surprised by yet-another-color 'issue'

See if either of these tutorials helps:

Color and Appearance - Change in Windows 10 (TenForums.com)

Start, Taskbar, and Action Center Color - Turn On or Off in Windows 10 (TenForums.com)

Unfortunately, I've already tried those. When I set the color on the taskbar, it changes what peeks out under the blank rectangles, but the overall taskbar is unaffected.

No instructions anywhere online depict my taskbar, nor explain how to fix it. And all I did was upgrade to Windows 10.

Doh! It's caused by the Classic Shell utility.