Ionic icons are not even in sizes

I just want to clarify if ionic icons are even in sizes because some of this are not(if i’m not mistaken) just like the ion-email icon. It has bigger size than other icons… Any body can help?

here is an example:


size of ion-icon is based on the font-size so adjust all your icon with this style to get even sizes for all icons.

even if i resize the font it still not even in terms of sizes… some of the icons are larger than others… just like ion-email icon