Format: mi-[name]-[alt]-[shape]-[o]-[direction]
name - The name of the icon, e.g. comment, print, bookmark etc
alt - An alternative icon.
shape - The icon inside a circle or square.
o - An outlined version of the icon. (Default style is "solid".)
direction -Always at the end. One of right, up, down, left. Example: mi-arrow-right, mi-arrow-circle-right.
Few examples are, mi-circle-minus can be mi-minus-circle similarly for plus for similar icons we are using "name-shape" based naming eg. mi-alert-triangle mi-check-circle, mi-circle-info can be mi-info-circle, mi-play-square can be mi-play-rectangle since it is rectangular in appearance.