Non-end sigma rarely distinguishable from smallcaps latin o.

In Consolas.

chars.js

@@ -10,7 +10,7 @@ export default
 "ƏƷƸƹǎǒǔǧǩǯǰǹ" +
 "ǽǿȁȅȍȑȕȟȨȩȲȳȺȻȼȾɆɇəʒʓ" +
 "ΔΘΛΞΣΨΩ" +
-"αβγδεζηθιλμξπρςστφχψωώϑϖϢϤϦϧϨϪϬϮϱ" +
+"αβγδεζηθιλμξπρςτφχψωώϑϖϢϤϦϧϨϪϬϮϱ" +
 "ЂЄЉЊЎБГДЖЗИЙКЛФЦЧШЩЪЬЭЮЯ" +
 "бгджзклмнфцчшщъьэюяђєљњў" +
 "ѢѤѥѪѫӁӂӚӛӜӝӞӟӤӬӭӴӵӸӹԔԕԘԙ" +