The /color command now accepts default as a valid argument to reset session color.
Details
Argument hint changed from <color> to <color|default>
Resetting displays "Session color reset to default"
Color values "default", "reset", "none", "gray", and "grey" are treated as reset values
Evidence
Updated argument hint (search for "<color|default>") and reset color list (search for "Session color reset to default")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed /color command having no way to reset back to the default color — /color default, /color gray, /color reset, and /color none now…