Feature request: Alter appearance of taskbar items for minimized windows

I'd like to have an option to alter the appearance of taskbar items for windows that are minimized similar to the support in KDE. See [1] for an example screenshot, the grayed out items correspond to minimized windows.

I find this useful when switching between tasks throughout the day; I minimize the windows unrelated to the task I'm currently working on, but leave them open to return to later. I find this simpler and less of a cognitive disruption than managing virtual desktops.

[1]: