Thanks for the quick reply Rated 5 out of 5 stars
Can I change only the foreground colors to change its brightness? To increase speed, can we save the settings (for a site) somehow and use it (I am not sure)? Great addon anyways. Giving 5 star for fast reply.This review is for a previous version of the add-on (3.1). This user has 2 previous reviews of this add-on.
1) Checking only 'Foreground styles' in the menu should work.
2) Settings cannot yet be saved.
3) I work on increasing the speed by applying SVG filters to images and by doing several low-level optimizations.