Rust logo isn't symmetrical

[m-ou-se]

I just discovered an absolutely critical bug in the Rust logo:

It's not symmetrical! The inner and outer circle of the gear don't even have the same center. 😱

[wesleywiser]

I'm unsure if this is covered under the stability guarantee so we may need to consider making this change across the next edition boundary. ^_/s

[jhpratt]

On the assumption this will be fixed, it would be nice if there were an official "cog-only" version of the logo available somewhere. Useful for some project logos.

[m-ou-se]

I accidentally hyperfocussed and wrote a new (symmetrical) svg:

<svg version="1.1" height="120" width="120" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g id="logo" transform="translate(60, 60)">
  <path id="r" transform="translate(0.5, 0.5)" stroke="black" stroke-width="1" stroke-linejoin="round" d="
    M -9,-15 H 4 C 12,-15 12,-7 4,-7 H -9 Z
    M -40,22 H 0 V 11 H -9 V 3 H 1 C 12,3 6,20 15,22 H 40
    V 3 H 34 V 5 C 34,13 24,12 24,7 C 23,2 19,-2 18,-2 C 33,-10 24,-26 12,-26 H -35
    V -15H -25 V 11 H -40 Z" />
  <g id="gear" mask="url(#holes)">
    <circle r="43" fill="none" stroke="black" stroke-width="9" />
    <g id="cogs">
      <polygon id="cog" stroke="black" stroke-width="3" stroke-linejoin="round" points="46,3 51,0 46,-3" />
      <use xlink:href="#cog" transform="rotate(11.25)" />
      <use xlink:href="#cog" transform="rotate(22.50)" />
      <use xlink:href="#cog" transform="rotate(33.75)" />
      <use xlink:href="#cog" transform="rotate(45.00)" />
      <use xlink:href="#cog" transform="rotate(56.25)" />
      <use xlink:href="#cog" transform="rotate(67.50)" />
      <use xlink:href="#cog" transform="rotate(78.75)" />
      <use xlink:href="#cog" transform="rotate(90.00)" />
      <use xlink:href="#cog" transform="rotate(101.25)" />
      <use xlink:href="#cog" transform="rotate(112.50)" />
      <use xlink:href="#cog" transform="rotate(123.75)" />
      <use xlink:href="#cog" transform="rotate(135.00)" />
      <use xlink:href="#cog" transform="rotate(146.25)" />
      <use xlink:href="#cog" transform="rotate(157.50)" />
      <use xlink:href="#cog" transform="rotate(168.75)" />
      <use xlink:href="#cog" transform="rotate(180.00)" />
      <use xlink:href="#cog" transform="rotate(191.25)" />
      <use xlink:href="#cog" transform="rotate(202.50)" />
      <use xlink:href="#cog" transform="rotate(213.75)" />
      <use xlink:href="#cog" transform="rotate(225.00)" />
      <use xlink:href="#cog" transform="rotate(236.25)" />
      <use xlink:href="#cog" transform="rotate(247.50)" />
      <use xlink:href="#cog" transform="rotate(258.75)" />
      <use xlink:href="#cog" transform="rotate(270.00)" />
      <use xlink:href="#cog" transform="rotate(281.25)" />
      <use xlink:href="#cog" transform="rotate(292.50)" />
      <use xlink:href="#cog" transform="rotate(303.75)" />
      <use xlink:href="#cog" transform="rotate(315.00)" />
      <use xlink:href="#cog" transform="rotate(326.25)" />
      <use xlink:href="#cog" transform="rotate(337.50)" />
      <use xlink:href="#cog" transform="rotate(348.75)" />
    </g>
    <g id="mounts">
      <polygon id="mount" stroke="black" stroke-width="6" stroke-linejoin="round" points="-7,-42 0,-35 7,-42" />
      <use xlink:href="#mount" transform="rotate(72)" />
      <use xlink:href="#mount" transform="rotate(144)" />
      <use xlink:href="#mount" transform="rotate(216)" />
      <use xlink:href="#mount" transform="rotate(288)" />
    </g>
  </g>
  <mask id="holes">
    <rect x="-60" y="-60" width="120" height="120" fill="white"/>
    <circle id="hole" cy="-40" r="3" />
    <use xlink:href="#hole" transform="rotate(72)" />
    <use xlink:href="#hole" transform="rotate(144)" />
    <use xlink:href="#hole" transform="rotate(216)" />
    <use xlink:href="#hole" transform="rotate(288)" />
  </mask>
</g>
</svg>

The cogs and holes etc. are all aligned in a perfect circle around the exact center of the image. The letter R is also slightly different, as the parts of it that appeared aligned (e.g. the left and right part of the 'foot'/serif, and some other things) were not entirely aligned either in the original. The vertical and horizontal parts in this version also align perfectly with the pixels when displayed at the default size, making it look less blurry. Also the R and the gear are separate objects, like @jhpratt asked.

---

Do we have any central place where we keep the logo(s)? The website repositories have a bunch of slightly different copies of the logo, but I'm not sure if there's any central place where we keep these materials so I can send a PR for this.

[Mark-Simulacrum]

https://github.com/rust-lang/rust-artwork, I suppose, but I don't think anyone is actively tracking PRs currently (or perhaps ever).

[m-ou-se]

Sent a PR here: rust-lang/rust-artwork#9