This document summarizes the research from the Colour Printing 7.0 project focused on next generation multi-channel and multi-layer printing. The project involved 7 PhD students and 2 postdocs researching topics like spectral reproduction workflows, halftoning for multi-channel printers, and 2.5D/multilayer printing. Key outcomes included contributions to spectral printing, understanding light-paper-ink interaction, methods for controlling gloss in 2.5D printing, and frameworks for assessing spectral images. The project provided insights into research areas opened by multi-channel and multi-layer printing technologies.