Minor version

Fixes:

• #16: BrokenPipe panic when piping flavours info to something that closes the stream during execution (such as head or tail). That might still be broken for other subcommands, but they're not that useful for piping so will do that later.
• Decrease minimum luma for dark backgrounds, as sometimes we have perfectly fine colors (which are saturated enough) which will be ignored (which in a few cases will cause a non dominant color to be picked, such as in this wallpaper)