Add a DOCUMENT sidebar pane with canvas colour

{
  "backend": {
    "author": {
      "email": "drschwabe@fastmail.com",
      "name": "Derrick Schwabe",
      "time": 1787973442
    },
    "commit": "git:sha1:9f6942377f11fe202c752f624fe0aac3b1b48f17",
    "committer": {
      "email": "drschwabe@fastmail.com",
      "name": "Derrick Schwabe",
      "time": 1787974336
    },
    "manifest": "mmm-manifest:sha256:1b5b39014d8f6f3db2dc09c27d23535345db32edbb0e90a48e0eb7ba11ff39e3",
    "message": "Add a DOCUMENT sidebar pane with canvas colour\n\nThe pane holds a canvas swatch for picking the background color of the\ngiven nodemesh.\n\nColor saves with the mesh as state.canvasColor, applied inline on body\nso it beats both the Tailwind default and the mesh's own CSS.",
    "objectFormat": "sha1",
    "parents": [
      "git:sha1:aac706f03d91c7fc41e9eef6acc074add7b7a13c"
    ],
    "ref": "refs/heads/master",
    "summary": "Add a DOCUMENT sidebar pane with canvas colour",
    "tree": "git:sha1:9f670bd17560d00fed0923aeece555b3b5d161d6",
    "type": "git"
  },
  "issuedAt": "2026-08-29T07:25:37.003Z",
  "previous": "mmm-revision:sha256:7e9d8fd87c6f367e7a69ad0af8ad41bf69117f780f5de55a18c1c0658dea0478",
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  "protocol": "mmm/0-alpha",
  "sequence": 12,
  "type": "mmm/revision"
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