psyBrowser application icon
===========================

The mark is shared by every psyBrowser build. It is one piece of artwork,
not a family: everything here is derived from a single 256x256 master.

Files
-----
  psyBrowser-256.png     The master. 256x256 RGBA, transparent background.
                         This is the original artwork and the only real
                         source; everything else in this directory was
                         generated from it.

  psyBrowser.icns        macOS icon container. Ten PNG slots, icp4 through
                         ic10 (16, 32, 64, 128, 256, 512, 1024). Drop into
                         the .app bundle's Resources and name it in
                         Info.plist under CFBundleIconFile.

  AppIcon.appiconset/    The same ten PNGs plus a Contents.json, ready to
                         drop into an Xcode asset catalog. Use this instead
                         of the .icns if the project builds its icon through
                         Assets.xcassets, which is the usual arrangement.

  psyBrowser.iconset/    The same ten PNGs with iconutil's naming, so the
                         .icns can be rebuilt on a Mac:
                             iconutil -c icns psyBrowser.iconset
                         Included so the .icns above can be verified or
                         regenerated rather than trusted.

  psyBrowser.ico         The Windows icon, for reference. A single 32x32
                         image; of no use on macOS.

Resolution ceiling
------------------
The master is 256x256 and there is no vector original. Sizes at or below
256 are honest downsamples. The 512 and 1024 slots are bicubic upscales
and are soft at the edges if you look for it - acceptable in the Dock,
visible in a large Finder icon preview or on an App Store listing.

If a crisp 1024 is ever wanted, the mark has to be redrawn as a vector
rather than resampled. The shape is simple enough for that to be quick:
two chevron arrows, cyan fill, heavy black outline, pointing away from
each other on a diagonal.

Shape
-----
Freeform on transparency, in the style Chrome and Firefox use, rather than
the rounded-square macOS has pushed towards since Big Sur. Deliberate, so
the Windows and Mac builds are recognisably the same program. Squaring it
off for macOS is a design decision for whoever owns the Mac build, not
something to do silently to match the platform.
