4CLIX-24.0-KDE-Fix
If the link here to file "kde-fix.tar.gz" doesn't work
you can use this link instead to get the file:
https://mega.nz/file/zHRG2RJB#-i6jOBOn4MHth5jCWNFKbHlQajcKatIeIhnFFaq0gKY

This is important for users of 4CLIX-24.0
While installing kde-style-breeze-qt4, an older kde software,
the version number of kde-style-breeze got raised to avoid update
But this created a blockage for installing kde software

A solution applied to kde-style-breeze-qt4 is neutralizing the
version number of it's dependency: kde-style-breeze by using prefix ">="

This uses the present version number of kde-style-breeze
and is included with the tweaked kde-style-breeze-qt4 file
Original file version was: 5.14.5-1

There are the two files to install at once together

To install them in this order:

Extract the zipped file in the downloads folder
now open the folder kde-fix, there ought to be:
kde-style-breeze_5.27.11-0ubuntu3_amd64.deb
kde-style-breeze-qt4_5.27.11-0ubuntu3_amd64.deb

Open the Admin File Browser in System tools
Go to folder: /var/cache/apt/archives
There is a shortcut on the left side panel
Right click on empty space inside this folder > Scripts > Open in Terminal
To create a temporary folder paste this command into the terminal:
mkdir tmp

To move into the new directory paste this command into the terminal:
cd tmp
Now manually copy those two files into this tmp folder
To change file permissions paste this command into the terminal:
chown root:root -R ./*.deb

To install both files at the same time, at once
paste this command into the terminal:
apt install ./*.deb

It will downgrade the files; answer yes to install

After installation, to move back up one folder
paste this command into the terminal:
cd ..
To remove folder tmp and it's content
paste this command into the terminal:
rm -R ./tmp

That's it

To test it open Synaptic and try to install kdenlive
This should work now
Updating of kde-style-breeze will make no difference

An alternative is to install my new version 4CLIX 24.1
https://www.pling.com/p/2178424

File from:
https://packages.debian.org/buster/kde/kde-style-breeze-qt4