Shrinking Violet is Salu Digby, a member of the Legion of Super-Heroes in the 30th Century. Born on the planet Imsk, she has the natural ability to shrink down to sub-atomic sizes. During the Five Years Later era, she was romantically involved with Light Lass and briefly used the codename Virus.
In Reboot Legion continuity, Shrinking Violet also gains growing powers and takes the name Leviathan in honor of her fallen teammate Gim Allon. This is later shortened to simply Violet. In Prime Legion continuity, she uses the codename Atom Girl. Shrinking Violet was created by Jerry Siegel and Jim Mooney, first appearing in Action Comics #276. (1961)