Example of SuperPaste: you have 'bread' picture. And in clipboard you have - 'meat' picture, with violet background color. Call SuperPaste. Set position of meat to bread (can press '*' for preview picture without meat), set Transparency 50% (let meat will be semitransparent), and set Transparent color - our violet background of meat, which not needed on final picture. SUMMARY: Semitransparent MEAT lays on BREAD without any violet background!