FEATURES
A basic plugin that allows you to specify regions that will be in shadow. These regions will make the player and events fade darker and lighter as they move from shadow to light (similar to Suikoden 2 for those who have played that). This plugin may not be compatible with other plugins that also change the blend color of map events. This plugin does not automatically place the shadows.
VERSION 1.0 – RPG Maker MZ
Download Plugin file
Download my master demo to view examples of this plugin from:
Galv’s MZ Plugins Home
Galv's RPG Maker Scripts & Plugins 
Good day Galv, is it possible to compatibilize it with Blizz mode 07 for MZ?
I don’t do compatibility, sorry – not enough time for all the requests I get.
me podrias decir como se usa este plugin porfa que no entiendo como
You’ll need to read the plugin instructions, the plugin settings and also you can download the demo and find the ‘Shadow Darken’ map and look at it to see how it works