Researchers report that they change the color of red lettuce to green by using genome editing to disable a gene involved in producing red pigments (anthocyanins). In the edited plants, the researchers observe reduced or absent red pigmentation and, instead, a shift in plant chemistry: other beneficial compounds, particularly flavonoids such as quercetin, become more prominent. Both outlets describe the work as an unexpected but controlled outcome of blocking red-pigment production rather than altering plant growth traits directly. The edited lettuce is reported to continue growing normally, with no indication that the gene change harms overall plant development. The findings suggest the approach could be used to tailor nutritional or health-related properties of crops—creating lettuce varieties with customized compound profiles—without disrupting cultivation. The research is presented as relevant to controlled-environment agriculture, including indoor farming, where specific nutritional characteristics and consistent production are often targeted.