Changing session color in tab menu doesn't stick

When you edit a session regarding the new color feature (edit > session > select color) the selected color sticks and survives a program restart.
But if you change the color through the context menu of the session tab the color instantly changes but is reverted back to default (or what has been saved in the session before) after a program restart.

Intended? Bug?

That's intended. Use Session > Save Session to persist.

Ah, ok, thank you.

Anyway, this request has been added to the tracker:
https://winscp.net/tracker/895