When we first designed this plugin many years ago, we created almost 100 rasterised icons. It seems that technology has left behind rasterised icons in favour for icon fonts. This allows graphics to be output in a similar way that textual fonts are output, where they can be resized and recoloured using CSS code.
The idea is to replace the entire CJT rasterised icon set as icon fonts to make it more like WordPress. We will also look at other aspects of the layout to conform more to the WordPress look and feel too.