Support screenshots/previews for KDE settings

[truelockmc]

Right now if you go into your system settings > Colors and Themes > Login Screen(SDDM) on KDE and try to see a preview of your themes, the ones installed via the sddm.sh script appear like that:

It would be great to make them have a proper preview there, like this:

For that to work you would just have to add the line Screenshot=preview.png to the created metadata.desktop file.
And add a screenshot called preview.png (or any name you'd prefer) there too.

[Darkkal44]

I did hear about this from my friend, but the reason why I havn't done it yet is mainly due to the large repo size.
But don't worry, at this point, the size of repo is above 1 gigs, so ig it doesn';t even matter.
I'll be adding these, thanks for reminding me.

[Darkkal44]

Oh and I noticed that, for the sword theme, you're using the default font, you can go ahead and manually download the font I've listed in the readme, if you want to.. :P

[truelockmc]

Thank you : )
I've installed the font 👍