I get no icons in the toolbars of Kdenlive in Ubuntu Studio 15.10. There are two of them, the usual one below the menu bar (New, Open, Save, Undo, Redo, Copy, Paste) and the Render (not a button, only the text) in an extra toolbar.
Apart from this, there are no buttons/icons in the clip monitor, only buttons with text. In all cases, I have tried changing the settings (in Kdenlive) from "Text alongside icons" to "Icons only", but to no avail.
I tried changing themes, which didn't solve the issue, and Kdenlive didn't allow me to configure the themes in Settings, resulting in the error Cannot start Colors Settings panel from KDE Control Center. Please check your system...
Have any of you experienced similar problems, and if you have, did you solve them? I'd prefer not to install Plasma 5.x or the Kubuntu Desktop, since I've read it messes up the whole OS. I'd rather stick with text buttons, than having to reinstall Linux.
I solved the issue partly, by configuring the toolbars in Settings, and changing the icons. See this picture. Now I only could get a few of the many icons to work in Kdenlive, so the chosen icons are not very conventional. Still, I feel this is better than no icons at all. Ubuntu team - pleaaaasssseeee resolve this error.