Change icons on panel

[trintadosete]

I noticed that some applications, such as Dolphin and Amarok, have different icons in K Launcher and in Panel. But others, such as Firefox and Libreoffice, use the same icon.
For aesthetic reasons, I would like to use monochromatic icons on the Panel (but not necessarily in the rest of the system). Thus:

Does anybody know how to change the icon of an application in the panel?

[TWPonKubuntu]

I'm not sure which panel you refer to, but on the central Desktop panel AND on the System Tray, I can right click->icon Settings and right click on the image of the icon in the edit form. That brings up a selection dialog where you can locate all icons (may take some searching in the application directories.

[trintadosete]

Maybe I have to update my Plasma, because when I access the Icon Settings, I have not option for change the icon...

[TWPonKubuntu]

After the icon settings form is displayed, you will see a box in the upper left hand corner. It should show the current icon...
Click on that icon and you will get a selection form to choose a new icon from the system defaults or you can search the entire directory (if you know where to find the icons for a particular program.

[trintadosete]

I dont have this option n my Icon Setting screen (see image attached).

[TWPonKubuntu]

I'm running 14.04 and it could be a problem with your 15.04
Is anyone else running 15.04 with the same issue?

[trintadosete]

Yes, I am using Kubuntu 15.04
Plasma: 5.3.1
Qt: 5.4.1

I am conscious that this feature is not yet implemented and probably will be soon. What I want to know is where KDE keeps the info to use different icons for the same application in the K-Launcher and in the Panel (as far as I know, this is new on KDE 5). It is OK if I have to access and edit some config files...

[trintadosete]

I just found out that the difference between icons is due to differences in the design for normal and small icons.
So, all I have to do is change the design of the firefox's small icon. I will do it and post the result here.

[trintadosete]

Yes, it works! Problem solved.