I have a mix in my PC of KDE4 and Plasma desktop, some applications from the control panel are missing and they are instead in another control panel of kde 4 desktop. How can I remove all the reminisance of KDE4 and get all the Plasma missing applications in the control panel. My desktop is messy and inconsistent between gtk2 and gtk3 and plasma and kde it really gets hard to get uniform look across all aplications.