Its picking up the dark theme from your OS (hence dark backgrounds) but also still using dark icons that would normally show up on a light background easily. Might be worth checking the KDE site if the following doesn’t help
You could try reinstalling the default breeze icon theme;
sudo apt install breeze-icon-theme
or the whole breeze theme if that doesn’t work;
sudo apt install breeze
You might also need to install qt5ct (lots of KDE apps rely on qt5 for there visual look)
For step 3, I wasn’t sure how to start the process to pack an archive and then unpack it so I decided to click the drop down button above preview where I picked New then Apply. Nothing thereafter indicated an archive was created and that I should now unpack the archive, so I need some guidance here please.
└──╼ $sudo apt install breeze-icon-theme
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
breeze-icon-theme is already the newest version (4:5.103.0-1).
breeze-icon-theme set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 196 not upgraded.
└──╼ $sudo apt install breeze
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
breeze is already the newest version (4:5.27.5-2).
breeze set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 196 not upgraded.
└──╼ $sudo apt install breeze-icon-theme
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
breeze-icon-theme is already the newest version (4:5.103.0-1).
0 upgraded, 0 newly installed, 0 to remove and 196 not upgraded.
└──╼ $sudo apt install qt5ct
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Suggested packages:
qt5-style-plugins
The following NEW packages will be installed:
qt5ct
0 upgraded, 1 newly installed, 0 to remove and 196 not upgraded.
Need to get 211 kB of archives.
After this operation, 972 kB of additional disk space will be used.
Get:1 https://deb.parrot.sh/parrot lory/main amd64 qt5ct amd64 1.5-1+b4 [211 kB]
Fetched 211 kB in 2s (84.6 kB/s)
Selecting previously unselected package qt5ct.
(Reading database ... 866290 files and directories currently installed.)
Preparing to unpack .../qt5ct_1.5-1+b4_amd64.deb ...
Unpacking qt5ct (1.5-1+b4) ...
Setting up qt5ct (1.5-1+b4) ...
Processing triggers for mailcap (3.70+nmu1) ...
Processing triggers for desktop-file-utils (0.26-1) ...
Processing triggers for man-db (2.11.2-2) ...
Scanning application launchers
Removing duplicate launchers or broken launchers
[-] Missing executable file kwin_rules_dialog at launcher /usr/share/applications/org.kde.kwin_rules_dialog.desktop
[-] Missing executable file knewstuff-dialog at launcher /usr/share/applications/org.kde.knewstuff-dialog.desktop
[-] Missing executable file lxqt-sudo at launcher /usr/share/applications/software-properties-lxqt.desktop
Launchers are updated
you missed an install file, and it did remind you too, ‘suggested packages’, qt5ct wont work properly without it
└──╼ $sudo apt install qt5ct
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Suggested packages:
qt5-style-plugins
Anyway, I’m sorry prado but there would appear to be no icon archives available any more from those links.
In your Icon Theme tab in the qt5 configuration tab window, try choosing the adwaita theme that should have white icons that will show up on the dark background.
If you want the old icons again, I can only suggest removing and then reinstalling kolourpaint, or perhaps using the KDE kvantum tool to change icons (it may not be installed with your desktop, but should be available in the repo - haven’t time to test this today)
If I wanted to install just the sole suggested package called qt5-style-plugins and not any other suggestions would I need to start from scratch with the first command being sudo apt install qt5ct ?
Or should I just go ahead and do it like this? sudo apt install --install-suggests qt5-style-plugins
how do I install just that one package without any other suggestions as I have read that I run the risk of installing all suggestions with command --install-suggests.
I selected Adwaita from Icon Theme within Qt5 settings, pressed Apply, then Ok, I don’t see any difference on my task bar icons. perhaps I need to restart to see difference?
you will always need to log off at least to see changes typically, not all desktop changes can be done on the fly, some are set when the desktop manager first loads.