Chart image
Right-click the image and choose «Save image as…» (on a phone, press and hold it).
Your chart is kept automatically in this browser. To keep a copy elsewhere, copy this pattern code into a note or file. Paste a code here and press Load to open it.
Right-click the image and choose «Save image as…» (on a phone, press and hold it).
You can bring it back with Undo.