Reported 11 months ago for 3.4.3, the tile for wrinkled spellbook has a spurious brown spot on the far right. Several other books have spots drawn outside the book proper for tile decoration, but that doesn't seem to apply here. The report suggested changing 'K' to 'M', but that just changes it into a spurious white spot. Change the stray 'K' to '.' to make the odd spot go away.
152 KiB
152 KiB