This is the official branding that Parabola adopted in 2013.

The discussion of the change mostly took place at
  https://labs.parabola.nu/issues/282

Directories:
  `originals`      The original art files that  were created by Jorge
                   Araya Navarro ("Shackra").
  `optimized-path` Optimized versions of the art with simpler SVG
                   source, that use <path> elements to draw the
                   text.
  `optimized-text` Further simplified versions, that use <text> to
                   draw the text.  Also includes a bare logo (not
                   logotype) and produces all derived graphics for the
                   website.

The `optimized-path` versions should render identically to the
originals (but Inkscape and copyright metadata isn't there).

The `optimized-text` versions require the font "URW Gothic L" must be
installed.  This also means that the rendering might be slightly
different at a subpixel level (most programs, almost imperceptible),
or very different if text hinting is enabled (Mozilla).

   Note: I render them with the Type1 version of the font from the
         `gsfonts` package.  Perhaps if I figured out how to force it
         to use the PostScript version of the font, the subpixel
         differences might go away.

All of these are Copyright the Parabola Project, and are licensed under
CC BY-SA 3.0 Unported.