These arrows are backwards

These arrows are reverse of what they actually do. They should be corrected to show what they actually do (swap them).

wrong direction 001

wrong direction 002

they are perfectly fine, they are showing the position the expanded panel will be hidden on if you click them…

No, they are backwards from what you just described, and backwards like I wrote in the OP.

when you click the up arrow in Edit Selector, that opened area will hide like it went up and the word Edit Selector will go down… i dont see anything wrong with it…

After further investigation, it appears that context matters. Since I had only closed the bottom pane, and the animation drops the menu, I had no idea what you were talking about or why you came to the opposite conclusion.

I played around with it and discovered that in some circumstances, you are correct. And when I only close the bottom pane, I am correct.

Thank you for your suggestion. I added it to our internal ideas tracker for our team to consider.