FilterLite is a lightweight screen-filter pack. It recolors your view with post-processing effects and leaves the world itself unchanged. Getting it running takes a minute.
Activate the Pack
The pack is described as a shader that acts like a vanilla shader. Where you enable it depends on how your copy is set up:
1. If you load it through a shader loader such as Iris or OptiFine, go to Options → Video Settings → Shader Packs. Select FilterLite and click Apply or Done.
2. If your copy sits in your resourcepacks folder, go to Options → Resource Packs. Move FilterLite to the Selected column and click Done.
3. Then look at the world. The colors should look different right away.
If nothing changed, check that you enabled it in the right menu. Shader packs don't appear in the Resource Packs list, and resource packs don't appear in the Shader Packs list.
Pick a Preset
FilterLite ships with 20 built-in presets, including Cinematic, Vintage and Lo-Fi.
1. Open the pack's settings from the same screen where you enabled it. For example, use the shader options button next to the pack.
2. Find the preset selector and choose a style.
3. Apply and return to the game.
For a first try, start with Cinematic, since it's one of the headline styles. Swap to another preset any time with the same steps.