Thread:KusaNin/@comment-27375020-20190703041535/@comment-25156300-20190703094746

Most of us just take an existing icon to get the outline, then recolor it and paste a new kanji symbol over top. (If it is an elemental kekkei genkai)

For other icons, you would just make them, then add them on here and put their size as 18px to get the small size for infoboxes. If the element version is big, you would also do 18px.