From the New Designer left menu, click on the Logo tab to customize your logo.
From this tab, you can downoald new logos for your signatures. You can add them to your signature by dragging them wherever you want.
After clicking on the logo, in "Block Format'" and "Image Options" part, you will be able to change the size, align, color, effects, the shape, etc.
Don't forget to save your changes !
#signature #logo #coulor #Customization #image