Version 3.0.1

Fixed

• The outline of the track is one pixel again. Since 2.0.0 it was drawn across
  two rows of pixels at half strength on any display at 100%: the stroke was
  moved inside the 40 × 20 track on the assumption that integer coordinates
  fall on pixel edges, while GDI+ puts them on pixel centres unless told
  otherwise. It is told now, so the outline, the track fill and the thumb all
  sit on the pixel grid, at 200% as well. Fractional scales are antialiased as
  before.

• The palette icon carries transparency and comes in four sizes. It was three
  bitmaps on white, so the palette showed a white halo around it and stretched
  it on a scaled display. The .dcr now holds PNG images at 16, 24, 32 and
  128 pixels as well, which the IDE composites over its own background and
  picks by scale; the bitmaps stay as the fallback for an IDE that reads no
  PNG. The files the .dcr is built from are in the repository.