A digital matte painter was someone who a matte painter who composited his or her mattes primarily in a computer. Their work could contain elements created in the real world, but ultimately all elements were processed digitally. As such, the credit was one that didn't appear before the advent of BBC Wales DWU productions. The credit tended to appear with greater frequency on Russell T Davies-era programming. The Confidential episode, Aliens: the Good, the Bad and the Ugly contained a segment about the discipline.