By default, Minecraft's crosshair is a simple reticle that helps you aim. It's present in all versions of Minecraft, including 1.8.9.
Customize the color and turn off "Dynamic Colors" for a consistent, static look. crosshair minecraft 1.8.9
Since vanilla Minecraft 1.8.9 does not have native crosshair customization settings, you must use mods. The most popular and efficient method is using paired with specific customization mods. 1. Install Minecraft Forge (1.8.9) By default, Minecraft's crosshair is a simple reticle