Under “View Options” you can tweak the size of image previews to anything between three and eight lines, and choose to show them in full color (instead of black and white, which is the default). You can also turn off image previews completely; images in the text will then be indicated with a little tag.
On iPad, there are two additional settings under “View Options”. Usually, the editor toolbar will fade out as soon as you start typing — if you activate “Always Show Toolbar”, you can prevent it from doing so.
Also, did you notice the floating counter at the top right? It lets you access comprehensive statistics about your current sheet, with metrics ranging from characters to paragraphs to reading aloud time. However, if you’re not so much into numbers, you can turn it off under “View Options”.