Columnar logos
==============

This archive contains the Columnar logo (logomark and wordmark together) and
the ribbons logomark on its own, each in white for dark backgrounds and in
black for light backgrounds.

  Full logo/
    SVG/  Columnar logo white (for dark backgrounds).svg
          Columnar logo black (for light backgrounds).svg
    PNG/  the same two, 2000 x 500 pixels, transparent background
  Logomark only/
    SVG/  Columnar logomark white (for dark backgrounds).svg
          Columnar logomark black (for light backgrounds).svg
    PNG/  the same two, 500 x 500 pixels, transparent background

Which one to use
----------------
Use the white version on dark backgrounds, from black up to about 50% gray.
Use the black version on light backgrounds, from white down to about 50% gray.

Prefer SVG
----------
The horizontal bars of the logomark are drawn as outlines. In the SVG files
the outline never renders thinner than 0.75 pixels in a browser, whatever
the display size, so the mark stays legible even at icon sizes. A PNG can't
do that: its outline is a fixed 1% of the mark's height, so it fades when
the image is scaled down a long way. Use the SVG wherever the target supports
it, and use the PNG at or near its exported size.

To recolor an SVG, change the color attribute on its root <svg> element.
Everything in the file inherits from it.

Circle masks
------------
If the logomark will be shown behind a circular mask (app icons, avatars),
expand the background so that the mark fits inside a centered circle whose
radius is 40% of the image's width and height.

More
----
Usage guidelines and a live preview: https://columnar.tech/brand-assets

Apache, Apache Arrow, Arrow, and the Apache Arrow project logo are either
registered trademarks or trademarks of the Apache Software Foundation.
