Base16 provides carefully chosen syntax highlighting and a default set of sixteen colors suitable for a wide range of applications. Base16 is both a color scheme and a template.
With Base 16 builder you could create guake template and set-up for it
git clone firstname.lastname@example.org:chriskempson/base16-builder.git cd base16-builder ./base16 chmod +x ./output/guake/*.sh
Apply with prefered template executing any shell script under