Hint to change diff mode in Diff Tools

[dreamworld]

At first I thought it is a bug, until when I resized the window when in Diff Tools...
Now I realize there are two modes (Side-by-Side, Inline), this is a brilliant idea.

However, when in the Inline mode, there is no easy way to tell how to change the text by entering the Side-by-Side mode.
This is misleading especially in my case, I resized the window when I was using other tools. At first I even thought it is a layout bug and tried to reset the webview cache.

Expect: show a hint how to change the mode.

[Sparkenstein]

fair suggestion in my opinion. I will add a notification maybe. or maybe a toggle button to let user manually switch between inline and side-by-side view.
the inline view is pretty popular among users who are used to cli tools more.