This is a suggest, not a question.
JCE Editor opens with the menu collapsed, which is fine. But I think the icon for opening the full menu should be different. Because it has three horizontal lines, it's easily confused for a line or paragraph menu function. I'm an occasional content editor so I usually have to click try a few different icons before I get the full menu.
I'm not sure what's an appropriate icon design, but I think you consider re-designing it.