Gender and number are colour coded in grammar capable texts¹ such as KJV, BYZ, ANT, ELZ, WHNU, and TR:

Masculine is blue.
Feminine is red.
Singular is standard weight.
Plural is bold.

To display colour coding:

Select the Passage lookup from the Search menu on the STEP toolbar.
Select a grammar capable text (KJV, BYZ, WHNU, TR, ELZ, ANT) from the Translation menu.
Select a passage from the Bible Text menu.
Select Colour coded grammar from the display menu.

¹A version which is capable of interlinear display (with an I after the name in version menu) can be displayed as a Comparison version with a grammar capable text. See the example.

TODO

Browser not supported