.. _whats-new-1-2-2: New in matplotlib 1.2.2 ======================= .. contents:: Table of Contents :depth: 2 Improved collections -------------------- The individual items of a collection may now have different alpha values and be rendered correctly. This also fixes a bug where collections were always filled in the PDF backend. Multiple images on same axes are correctly transparent ------------------------------------------------------ When putting multiple images onto the same axes, the background color of the axes will now show through correctly.