Scrollbar

A persistent scrollbar shown whenever a body scrolls — e-ink has no fling animation to tell you there's more.

Rules

16 dp lane at the trailing edge (body end padding includes it); 1 dp divider track; 6 dp outline thumb with radius-full.
Always visible while content overflows; never fades.
Headings and footers stay fixed; only the body scrolls.

In the app

inkScroll and inkScrollIndicator.

The thumb appears only when content overflows.
Content scrolls by touch or pen.

Preview

Persistent, in a 16 dp lane

Completed ToDos stay in the collapsed “Completed” list, then are deleted. Reopen one to keep it. Syncs to all your devices. A shorter time also applies to ToDos you’ve already completed.