How to install:

You'll find the mod here:
(C:)\Program Files (x86)\Steam\steamapps\workshop\content\108600\2895974075\mods\MoreScalesand360vision

There's two folders, 360vision and More scales.
Open the one you want and go through its folders till you find the file and copy it:

360 vision: LightingJNI.class
Zoom levels: MultiTextureFBO2.class

There's 3 ways to install it:

1) If you want Zoom levels, paste your file into this Project Zomboid's folder:
(C:)\Program Files (x86)\Steam\steamapps\common\ProjectZomboid\zombie\core\textures

2) If you want 360 vision, paste your file into this Project Zomboid's folder:
(C:)\Program Files (x86)\Steam\steamapps\common\ProjectZomboid\zombie\iso

3) If you want BOTH, do steps 1 and 2.

After installation:
Zoom levels: Enable them in game settings as you would do with Vanilla ones.
360 vision: Will be automatically enabled.

To revert it to original, reinstall the game if you didn't save a backup copy for the original files.

Credit to CoyZ4 for the guide!