Keyline Icons v0.6.0: Currency marks with circled halves

The seven currency marks arrive with circled halves, and those hold 1 unit of daylight against the ring rather than the 2 the guide asks between elements: a container is the frame a drawing sits in, not a neighbour it has to be told apart from, and at 2 a letterform comes out at about half the well. Bitcoin has no circled half, because its four stubs stand outside the letter at both ends and solving them shrinks the B until its bowls carry 1 unit of white instead of 2.

29 drawings added since 0.5.0, bringing the set to 692.