But those of Skeumorphic elements, so they don't fit into modern flat design and eliminating any affordances. Our designers are still trying to get the rest of the business to accept hyperlinks that look exactly like the rest of the text, so that the only way you can know what is clickable is hover the mouse on it, or try tapping it. /s
Gradients on buttons to make them appear rounded and clickable are dead these days. Nothing suggests the maximize/minimize/close buttons are buttons anymore other than being abstract looking symbols that are otherwise out of place (at least until you hover over them).
Hiding all scrollbars is totally the trend these days, so the only way to know that something is scrollable is either by trying to scroll it, or noticing cut off content. If the window is sized just right so no content is cut off, it is easy to not realize scrolling is even possible until you eventually do it accidentally.
Those sorts of icons just don't fit into this type of usability harming hyper minimalism that was largely intended to save precious screen space on small mobile devices, but which are simply moronic on full sized computers. sigh