So. If you take Plaggs color, green. (Not including black cuz ladybug has black too)
And then take Ladybugs color. Red.

What color scheme do you get.

Red and green

Green and red

Green and red is watermelon

So

The plagg and tikki ships have a mas-fruit?
(Get it? Mascot. Masfruit? Hahahaah)

WATERMEEEEELLLLLLOOOON!

Or strawberry-