How to Customize the CRT Visual Settings
Locating the Adjustable Settings
The pack includes adjustable visual settings so you can tailor the classic monitor effect to match your personal preference. Because vanilla shader packs do not add a dedicated menu button to the base Minecraft pause screen on their own, their settings live inside the pack files in your game directory.
1. Open Options, select Resource Packs, and click Open Pack Folder at the bottom of the screen.
2. Locate the CRT shader pack inside the resourcepacks folder. If the pack is currently a compressed archive, extract it into a regular folder of the same name and move the archive out of resourcepacks so you can edit the files freely.
3. Open the extracted pack folder and navigate into its assets/minecraft/shaders directory to find the file holding the user-changeable visual settings.
4. Open that file in any plain text editor and adjust the documented setting values to soften or strengthen the tube television look.
Reloading Changes Live in Game
You do not need to close Minecraft to test your adjustments:
1. Save your modified file in the text editor.
2. Make sure the extracted folder version is selected in Options > Resource Packs.
3. Return to your active world and press F3 + T on your keyboard. Minecraft will reload all active resource and vanilla shader files on the spot, immediately applying your updated CRT visual style.