I installed it using cargo install silicon after the latest pasteboard fixes were applied.

I tried adding text via clipboard contents, from file and by entering it directly from stdin. In all cases the output image seems to be sized appropriate to amount of entered text, but the text itself is not visible.

I wonder if this is a problem with fonts or themes, --list-themes as well as --list-fonts output non-empty lists. I've tried both default theme and font and custom theme (zenburn) and a fallback font (Hack).