How to delete an icons and change an other from panel?

[vasiauvi]

Hello all,
First time installing Linux Lite on my laptop. My wife is using LL from 1 year, I think.
Until now used Ubuntu but wanted to try something else.
I've started to install different applications after installing the LL. Example: installed Synapse but remove it after some minutes because I like Kupfer more. But the icon of Synapse, or the place where the icon was remained in the xfce4-indicator-plugin.
Also the prime-indicator has a big icon, as you can see in the image bellow.

Question: how can I remove the icon that is missing and replace the big one with an other?



Thanks

EDIT: the image from left side of the picture disappeared after a restart, but the big icon remained the same size.

[torreydale]

Consider the Help Manual and look at the Customize section.  There is an area dedicated to the Panel.

[vasiauvi]

Hello,
I've looked on the Help section and changed the icons size to 20 from 22 px. Unfortunately didn't had any effect. In this moment I really don't know what to do to change the icon ...
Or, I can deinstall the prime-indicator.

[JmaCWQ]

Hello Vasiauvi,
Yes you can remove the Indicator Plugin & add it back again, hopefully without the problem.
Right click on the Indicator Plugin area & select Remove, logout & back in again, then right click on the Panel & go Panel > Add New Items.
Select the Indicator Plugin from the list, click Add, Click Close.