Darth: no she is not lavender but she might have came from a lavender cross. Her patterns suggests it. At least her first picture suggests it. Her second picture is confusing - very different color. . . . suggesting a MG cross.
The irid reflection in the first picture suggests she has irid background.
The yellow fins suggests she has MG background
Her pattern suggests lavender background
Perhaps she is a result from MG x Lavender cross . . . . not sure
Black copper x that female will give you a rainbow of colors
copper, multi ccopper, turquoise, MG patterns. Depending on their background, may even produce cambodian pattern, cellophane.
I bred a light green (unknown background) x red washed turquoise (irid, no metallic background ) = platinum, cellophane, cambodian patterns, copper, turquoise, wild type multi, royal blue, steel blue . . . . quite surprising but interesting none the less.