It is (or at least was) possible to opt-out, I'm using none of those with KDE 4.14.3-r1
That said the only reason I was able to accomplish this (and it was convoluted) is because Gentoo (Linux distro) allows me to customise & compile software with specific settings.
If I have to recompile to get properly coloured tray icons and a unified colour scheme (not split between applications and task bar), then the software is designed wrong.
That said the only reason I was able to accomplish this (and it was convoluted) is because Gentoo (Linux distro) allows me to customise & compile software with specific settings.