Implementing the ability to choose from a selection of icons for their gauges allows owners to guide the angle of feedback they're looking for from their audience, or simply customize their page to best fit their theme or preferences.

Examples include:

A thumbs-up/thumbs-down set for users who prefer not to use the existing heart/heart-outline set.

A bright lightbulb/dark lightbulb set for owners seeking feedback on how 'smart' a proposed change or product is.

A '#1'/'#2' set to allow customers to choose between 2 critical options and denote how strongly they feel about it all on one gauge

A handful of color variations for the above, so owners can avoid using colors that clash with their color scheme.