You can place a graphic from a document such as an HTML page in the Gallery by drag-and-drop.
Display the Gallery theme to which you want to add the graphic.
Position the mouse pointer above the graphic, without clicking.
If the mouse pointer changes to a hand symbol, the graphic refers to a hyperlink. In this case, click the graphic while pressing the Option Alt key to select it without executing the respective link.
If the mouse pointer does not change to a hand symbol, you can simply click the graphic to select it.
Once the graphic is selected, release the mouse button. Click again on the graphic image, keeping the mouse button pressed for more than two seconds. The graphic image is copied to the internal memory.
Without releasing the mouse button, drag the graphic into the Gallery.