Recently, I was working on an Impress presentation, and I needed more colors than LibreOffice provides with its standard color picker. Specifically, I needed several light colors, but the standard color list includes only a few light blue possibilities. I could have defined my own colors manually using the Color Picker, but "mixing" colors by specifying RGB or CMYK numbers is a cumbersome, hit-or-miss process. LibreOffice also lets users load predefined color libraries, but none of the ones I found suited me. Instead, by working with web-standard colors plus a little bit of awk scripting, I managed to create my own color list, providing well-organized colors, grouped in families, with as many color variations as I wanted.