Hello,
I just installed Fedora 22 and I'd like to change my desktop colors and such. I may be running Plasma 5, I'm not sure (/usr/bin/startkde comes from the package plasma-workspace-5.3.2-2.fc22.x86_64, but I notice that kded4 and kdeinit4 are running as well on my machine).

I went to System Settings and then to Workspace Theme. Under Desktop Theme I got a number of new themes but when I click on them nothing happens (this is for an out-of-the-box Fedora 22; as of this writing my install is less than 24 hours old).

Even after installing some themes, if I look under "Look and Feel" in the Systems Settings->Workspace theme, I still see only two overall look and feels, and no way to update those (apparently).

Is there something I'm overlooking? Thanks.

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ps ax | grep plasma

if it says "plasmashell", it's "KDE5" and if it says "plasma-desktop" it's KDE4.

For KDE 5 run
[code]kcmshell5 desktoptheme[code]

and for KDE 4
[code]kcmshell4 desktoptheme[code]

This affects the desktop and is largely different from application styling/LaF.
The latter will likely support "fusion" and "gtk+" and (depending on whyt you've installed) maybe "breeze", "oxygen", "qtcurve" or "virtuality"
Some of these styles have own config options and will (except for gtk+) follow "kcmshell5 colors"

Thanks, luebking. So I have KDE5; groovy.

How do I know what desktoptheme's kcmshell5 will recognize (ie, that are currently installed)? And can I go to eg kde-look.org and grab one of those themes, or I have to be careful to get Plasma 5 themes exclusively?

Do I run kcmshell5 directly on a .tar.gz file, or I have to extract it first and then I run it on a directory, or...? Documentation seems thin on this tool.

"kcmshell*" load systemsettings modules.
It will ensure you open the correct module (version) without me having to tell you how to click through systemsettings

The easiest way to get new themes from (kde-look) is via the "install new themes" button ("k-get-hot-new-stuff"), it should also filter the supported formats, but afaik, you can use plasma4 themes on plasma5 (though they might be "incomplete" on some aspects)

NOTICE: that desktop themes will really only affect the desktop and panels, not overall application looks.

I typed

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kcmshell5 load systemsettings modules

. It said, "Could not find module 'load'. Could not find module 'systemsettings'. Could not find module 'modules'. Did I misunderstand?

You shouldn't have to tell me how to click through systemsettings, right? I mean, if you do (and I am a 30 year UNIX veteran sysadmin), then either I am an idiot or the system design is broke, isn't it? This should be simple; even going to the command line is strange.

I wonder why this seems so hard. I mean, just to test, I went to my CentOS 7 desktop and zipped right to System Settings->Workspace Appearance and Behavior->Workspace Appearance and started changing things. Every time I hit "apply", things changed. Easy-peasy, and I can see the effects of the new themes/decorations right away.

Why can't I do the same thing on KDE5?

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kcmshell5 desktoptheme

Tos see a list of available modules:

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kcmshell5 --list

and as usual:

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kcmshell5 --help

Thanks again, luebking. I note that kcmshell5 desktoptheme brings up a selection of themes, but if I click on them they do nothing (I also push Apply and Ok, naturally).

Actually kcmshell5 colors is making me pretty happy; it works. I still wonder why this is not available by clicking around.

Are these known issues and KDE5 is still lacking in certain such features?