Color–magnitude diagrams for all NUV (top) and FUV (bottom) UV-VPS catalog sources with i′-band coverage in NGVS. The dashed line at m_i′ = 21.3 marks the SDSS 95% i′-band completeness limit, and the dashed line at m_i′ = 24.9 marks the NGVS point-source depth at S/N=10. The red horizontal lines at m_NUV-m_i′ = − 1 and m_FUV-m_i′ = − 1.5 represent the physical color limits for the typical colors of instantaneous bursts of star formation observed at the peak of activity.