Megabreccia inside Toro Crater (EDM - Natural - but strongly enhanced - Colors; credits: NASA/JPL/Univ. of Arizona and Dr Paolo C. Fienga - Lunexit Team)

This EDM shows a close-up of one of the features that make Toro Crater a great target for HiRISE images: colorful patches of Megabreccia.
Breccia is a mixture of chunks of rock (clasts) that have been broken by an energetic geologic event, such as a Landslide or Crater-forming Impact, and then that got cemented together in a finer grained material.

Megabreccia features very large clasts that are big enough for HiRISE to see on the surface - some even larger than 30 feet across.
In this 200 meter (about 1/8 of a mile) diameter exposure of Megabreccia, clasts of various colors (indicating different kinds of rocks) and sizes have been exposed in the Uplifted Central Peak of Toro Crater.