Make the scroll bar slightly bigger and more visible
I often use the scroll bar to scan through or read a document and I find it hard to locate in readcube. It's very distracting to have to stop reading to get the mouse point exactly in the right position in order to do this.
Melody McConnell commented
Yes, something needs to be done about this. I am about ready to punch my laptop here. More than half the time it doesn't even scroll when I try to move the scroll bar...am I clicking in the wrong place or what? So frustrating. I'm spending most of my time trying to scroll. Or provide several other methods for scrolling such as clicking in the scroll bar area, scrolling by arrow keys. This should apply to the sidebars as well.