the template isn't finished yet so bare with me. There are a lot of options :D
This repository provide base16 colorschemes for weechat.
It is meant to be used along with the new implementation of base16 colorscheme project, which propose a modular approach, by separating templates, schemes and builder into different repositories.
Download the theme.py script to your .weechat/python directory and load it /script load theme.py.
Run /theme installfile [absolute_path] where absolute_path points to the chosen colorscheme in the build_scheme directory.