I've run into a few cases where the Trace view has used

rgb(255,102,51)

which unfortunately looks like a red error span at a glance, but I've checked the span and its children and everything is 200. It would seem preferable to use a palette that avoids anything remotely red except for errors. Specifically bright Orange has a Hue=30-degrees and Red has a Hue=0-degrees so that

rgb(255,102,51) = hsv(15,80,100)

might be right in an ambiguity zone.