What is "Dithering (PgDn)" for?

[Jvnc_0503]

I would like to know what does this optiones does and what differences/changes are between "Scaled" and "Unscaled"
I'm looking for the best visual/graphics, so what could you suggest me to choose?

Current Pcsx2 version used: v1.7.0-dev-1190-gfafbb3cc6
   
   

[refraction]

well, unscaled looks the best with dithering enabled, turning it off will force it to use higher colour depth.

So the choice is yours

[Jvnc_0503]

well, unscaled looks the best with dithering enabled, turning it off will force it to use higher colour depth.

So the choice is yours

Okey, I understand
thanks for answering

I'll try setting it to Off and then applying a shader

[RedDevilus]

Dithering:
https://www.youtube.com/watch?v=h9j89L8eQQk&t=227s

Scaled vs Unscaled comparison screenshot:
https://cdn.knightlab.com/libs/juxtapose...5b6c7adf9a