This update comes as a rework to allow easier support and take advantage of the new features of 1.19.4 Display Entities. The plugin no longer uses ArmorStands as holograms but directly uses efficient and customizable entities called Display Entities (TextDisplay, ItemDisplay, BlockDisplay).
TL;DR This update allows the support of all versions from 1.19.4 to the latest one.

CAUTIONS:
- Versions below 1.19.3 (included) are not compatible anymore.
- The plugin hasn't been tested on a large-scale server. Since it is using a new mechanic, there are some possible unexplored issues/performance issues. Please report them as soon as you encounter a problem.

New Features are also added in this version:
- Possibility of using Custom Model Data on items. Add the ID of the model data after the material: %item_MATERIAL: model id%
- Added player head with custom texture: %player_ TEXTUREURL% (you can find the texture URL on Minecraft Heads website, by using the value "Minecraft URL" under "For Developers" section)
- Added a Block hologram. %block_MATERIAL%

Other features:
- Text Holograms are multiple lines. As long as you don't add sound, item, head, particle, or block, the usage of %nl% will act as a '\\n' in the hologram.

Future:
- I plan to take advantage of the Display entities customization possibilities: Size, color, background color, orientations, and more...

Thank you very much for your patience. I hope it will fit your expectations.