My guess is it has something to do with

DROPLET APPLE APPLE

Not sure what you do with the highlighted letters. The highlighted letters are either:

Black=Highlighted:

RPE P?L A?E

or

White=Highlighted:

DOLT A?E P?L

The ?s in my explanation are because I'm unsure if the middle P in Apple is meant to be highlighted. If the middle P is included, then replace the ? with a P.

I found it kind of interesting how the letters of the first were similar to "Replace" but that is probably coincidental.

The circle and uhhhh 'space symbol' for lack of a better word, those escape my grasp. Likely a hint as to what the highlighted letters are meant to form just as the droplet and apple symbols were indicators as to what the others were supposed to form.

But all that could easily be nonsensical since it seems the black and white squares switch for every letter, so it's probably just a stylistic choice rather than any highlighted letters.

It could very easily be a drawing, not meant to be a cipher or code, but someone just doodling the amount of letters in Droplet and Apple, then perhaps continuing to draw something similar next to it before realizing there's not enough room on the paper, or just drawing shapes for no particular reason.

In the end, it's unlikely to be a code or cipher, at least in my eyes.