42Bring your own
Copy a line drawing from anywhere — an icon site's copy SVG button, Inkscape, Illustrator, Figma, a diagram from a web page — and paste it straight onto the board.
Or open oneAn .svg file behaves the same way whether you paste it, drag it in, or choose it under Add image. It arrives as a picture, and Detach then turns it into editable lines whenever you want them.
Two ways to landSlate asks whether you want it as editable lines or as a picture. Editable means real Slate ink: recolour one line, rub part of it out, and it draws itself piece by piece in replay.
Too detailedIf a drawing uses gradients, blur, masking, an embedded photo, or simply has too many parts, Slate places it as a picture and says why. Converting it would look wrong rather than simply simpler.
Match the boardMost artwork is dark ink on white, which vanishes on a dark board. Pasted lines are adjusted automatically, and the Match the board button does the same for anything already there — it flips what would not read, keeps colours you would recognise, and removes the white plate behind the drawing.
What converts wellPlain line art is the sweet spot — icons, technical drawings, simple diagrams. Shaded illustrations and anything photographic are better kept as pictures, which is what Slate will suggest.
Part of the Slate guide — or read the whole guide on one page.