It seems you're asking for a review of a specific skin called for VirtualDJ (likely version 7 or an earlier build).
Mix Lab 3.1 on VDJ 7.4 or Skin with EQ Crossfaders - VirtualDJ skin virtual dj 7 mix lab v3 1 top
Scrolling through a forgotten forum’s deep archive, he found a link that made his pulse skip: It seems you're asking for a review of
The "V3.1" iteration is a refined version of the classic Mix Lab series, fixing bugs found in earlier versions and optimizing the graphical interface for smoother performance on older hardware. skin virtual dj 7 mix lab v3 1 top
Ensure you are getting the .zip or .vdb file from a reputable community forum.