The smartshop uses a fixed indent to right-align the price quantity. This causes the price to be partially or mostly cut off for prices larger than 9 due to it being clipped out the right side of the button. This patch fixes it, but you might need to convert init.lua from DOS to unix linefeeds to apply the patch.
The version used on Illuna is about two years behind upstream, which has wifi storage, supports pipeworks and who knows what other features it has added, but @afk wants them.
I have also pushed the patch upstream, it may or may not be applied considering last commit was two years ago.