I know Kubuntu 16.10 hasn't even reached beta, yet, but I thought I'd point this out, anyways. See attached screenshot for example. The theme is set to Breeze Dark and the style is set to Breeze, but the "Set Zone in/out" icons on the clip and project monitors are still showing their darker-looking versions. Reproducible: Always Bug discovered while using Kdenlive 16.11.70 git master build via ppa:kdenlive/kdenlive-master Kubuntu 16.10, KDE Plasma 5.7.2 desktop environment. KDE Frameworks 5.24.0 Qt 5.6.1
Created attachment 101183 [details] Screenshot example
UPDATE #1 - Looking closer, it appears that some of the icons in the Timeline Toolbar are also using the light-themed icons while the dark theme is selected.
Could be that you still have the official Breeze icon theme installed, which has yet not caught up with the latest Kdenlive icon revisions/updates. On my system, I'm now using a cloned Breeze icon theme, into which I installed the updated icons, and wired that up to be my current Breeze icon theme. The reason is that any installed system Breeze takes precedence of any locally installed Breeze icon updates that come with Kdenlive in the hicolor branch. The ugly truth behind this mess: https://github.com/TheDiveO/kdenlive-breeze-icons
I think this issue resolved itself after the official release, so we're good. Closing bug.