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| a "waypoint" is just a spot on the map represented by a little blue circle.
an "icon" is just a spot on the map represented by a picture (weed, fish, rock, etc.)
and here's some secret-squirrel info for you TJ: sometimes a piece of structure has more than one kind of element, thus making it kinda handy to distinguish between them visually with the little picture thingys rather than the little blue circles.
in all seriousness, as someone who cut my GPS teeth using Garmin units, i never really did understand the false distinction that Lowrance made between "waypoints" and "icons" in the first place...and Humminbird that i use now has never done so either; it's more work manually selecting the picture to represent each point up front, but they all transfer from unit to unit with the picture - even across generations.
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