Name: the text displayed on the badge (you can write what you want).
Background color: HEX color code without the # (000000 for black in our example).
Logo: the icon name matching Simple Icons (apple in our example).
Logo color:white or black to match your background color.
You can find the right logo name and choose an appropriate background color from Simple Icons.
Once you've searched for your technology, simply use the button to the right of the technology name to paste it into the space provided, then do the same with the color code.