Mod configs are powerful and unreadable. The customizer turns the knobs that matter into friendly toggles and sliders — with live previews — before you ever hit Launch.
The visualizer reads the actual config files your mods ship — TOML, JSON, properties — and renders them as controls grouped by mod. Change a value and it's written back in the mod's own format, exactly where the mod expects it.
When this feature detects the problem, these are the actions it can apply for you.