In the iOS Mail app, you can insert your own drawings. Hold down your finger in a message until you get the usual pop-up menu for pasting content or inserting a photo/video/attachment.
At the end of the list is Insert Drawing. The tools you get are the same as you get for annotating screenshots and PDFs—a marker, a highlighter, a pencil, eraser, a lasso for moving your annotations, and a color switcher (white, black, blue, green, yellow, or red). The + icon has some other options for inserting shapes and text in a drawing, even your signature.
Taking a screenshot has always been relatively easy in iOS. You simply hold the power button and Home button at the same time.
It used to save the screenshot in Photos, but now, it puts a thumbnail on the screen. If you click the thumbnail, you’re taken into a new editing screen, where you can make multiple edits: crop, add arrows/lines/shapes, put in text, sign it, magnify a section, highlight, write on it, type on it (and change the font), select sections, undo/redo your actions, or use the lasso tool to grab your annotations and move them (even scribbles and highlights). Too many!
When you click Done, save the screenshot to Photos, or just delete it, if it was for fun. (This is in addition to the tools you get in Photos for cropping, rotating, filtering, and adjusting color and contrast.)
The new Control Center has put everything on a single page instead of spread over multiple cards.
If you don’t like the default choices it’s simple to customize Control Center to your liking: go to Settings > Control Center > Customize Controls and you can add and remove items or rearrange the order in which they appear.
From here you’ll have the option to add links to alarms, your Apple TV remote and screen recording mode or delete some of the options.