The Orbian cursor theme is designed with mostly one thing in mind- a small orb on the corner of a cursor. This orb is used to indicate the various cursor states by changing colors and holding icons. There are 8 color sets available: Light, Dark, Ultradark, Mint, Ice, Toast, Rose, and Pine. The 1.0 release will also include options for alternatively colored text cursors to suit certain application theming choices. I do eventually intend to make other sizes available, but it's only 32px for the time being.

Linux installation is as simple as downloading this from your settings in KDE, or downloading from online and extracting the contents into home/.icons

To install the Windows version:
Download the theme of your choice, extract the .zip, and right click the installer file. There should be a menu option called 'install' [on Win11 you might have to expand the context menu]. Click that, and then confirm on the pop-up. After that, the theme should be selectable in [ Settings > Personalize > Themes > Mouse Cursor ]