How do you customize Minimum font size for body text?

Override when you have an accessibility commitment stricter than "not unreadable" and want the check to enforce it. Raising `minPx` to 14 or 16 turns a defect detector into a design-system gate, which is the right move when your team has published a minimum reading size and wants every page held to it automatically. Lowering `maxPx` is worth it on templates where you know the largest legitimate body element and want tighter detection of cascade leaks.

Stay on the defaults if you have not actually agreed a minimum reading size internally, because the check will start failing pages over a number nobody signed off on and the findings will be argued with instead of fixed. Keep the Standard range on third-party or marketing pages you do not control the CSS for — you cannot change what you do not own, and a permanently failing check trains people to ignore it. If your goal is simply "tell me when a page breaks", the defaults already do that.

A raised `minPx` produces more findings, and the findings become opinions rather than defects — you have to be willing to treat them as work. Because a tighter floor fires on pages that are perfectly usable, the cost is credibility: a check that fails on something the team will not fix is worse than no check. Tightening `maxPx` has the opposite risk, quietly passing a genuine cascade leak that happens to land inside your narrowed window.

The Standard range is a shared floor: it is written to be defensible on any page, from any organisation, without configuration. Your Custom range is a statement about *your* type system and belongs to you — it should come from a published design token or accessibility policy you can point at, not from a number chosen during one audit. Record where the value came from, because a threshold nobody can source is the first thing relaxed the next time it fails.

A documentation site with a published 16px minimum sets `minPx` to `16px` and leaves `maxPx` alone, turning the check into an enforcement of its own standard. A marketing team whose templates cap body copy at 20px sets `maxPx` to `24px` to catch heading rules leaking into paragraphs early, accepting that legitimate display type must then be excluded from the audited pages. A team auditing a partner-hosted page they cannot edit keeps both defaults, because the only actionable finding there is text that has genuinely broken.