Got tired of the default Plasma Pager? Me too! That is why, inspired by panels in tiling window managers, I made this plasmoid.
This plasmoid doesn't currently offer any customization. Furthermore, it is intended to be used in a vertical panel only.
Later there will be a proper mechanism. At the moment, do the following:
git clone https://github.com/ishovkun/taglist
cd taglist
kpackagetool5 -t Plasma/Applet --install package
That is where the beauty of customization comes. Go to http://fontawesome.io/cheatsheet/, grab the icons you like, and set them as names of your desktops. Note that you really need to select the icon from that cheatsheet and also that is won't show correctly in the desktop settings page, but it will in the plasmoid since it comes bundled with Font Awesome.
Some people have multi-desktop setups. Let's assume you want separate indicators per screen. Since KWin doesn't allow separate workspaces (desktops) per screen, that's when this feature comes in handy. Just enter the comma-separated labels into the "Custom labels" field and choose the "Custom Labels" value into the drow-down list.
Thanks to the authors of the Font Awesome.