Shape
Five corner radii, each for one kind of thing, and one signature: the docked panel that grows out of the page header's line.
Corners

| Name | Pixels | For |
|---|---|---|
art | 6 | Small art up to 32, key caps |
row | 8 | Rows, washes, art up to 72 |
slab | 12 | Slab, fields, large art, a ring around a picture |
panel | 14 | Docked panels, groups |
window | 18 | The window |
A ring around something at an inset takes its corner plus the inset. A picture with corner 8 and a ring 4 outside it has a ring of 12. The keyboard ring is 2 outside the item, so a row, corner 8, has a ring of corner 12.
The tokens also hold rowSlab (10). No part of the kit uses it.
Docked coves
A panel grows from a line. The docked panel hangs from the page header's hairline into the window's right edge as one shape with them. Where its top edge meets the line there is a cove, a concave curve of 10 that joins them (the fillet). Its one free corner, at the bottom left, is 14. It is not a card laid on the page.

- CoveA concave curve of 10 where the panel's top edge meets the hairline.
- CornerThe panel's one free corner, 14.
DockedPanel fixes the cove at 10. Only Docked, the shape under it, takes a fillet of its own (6 unless set) and a cornerRadius for the free corner (17 unless set). See the docked panel. ## Where not to round {#flat}
A run of selected rows is one wash, round only at its ends (see States). The hairline is square. A window is round only where it is a window: a crop in a figure runs off its edges, so that it never shows four corners like a floating card.
Experimental, in Tacit.Kit 0.1.
Text and figures: CC BY 4.0. Tacit.Kit: LGPL-3.0 code, OFL fonts. The Tacit name.