Pics show change in colour of Perth pitch across 3 days

The broadcasters of the ongoing India-Australia Test in Perth shared pictures showing the comparison between the colour of the pitch across the first three days. On Day 1, the pitch was greenish, while on Day 2 and Day 3, the tinge of green reduced. Former India captain Sunil Gavaskar reckoned the use of rollers helped the Perth pitch become flatter.