Cells cells = worksheet.getCells();
// === Setting Background Pattern ===
//Accessing cell from the worksheet
Cell cell = cells.get("B2");
Style style = cell.getStyle();
//Setting the foreground color to yellow
style.setBackgroundColor(Color.getYellow());
//Setting the background pattern to vertical stripe
style.setPattern(BackgroundType.VERTICAL_STRIPE);
//Saving the modified style to the "A1" cell.
cell.setStyle(style);
// === Setting Foreground ===
//Adding custom color to the palette at 55th index
Color color = Color.fromArgb(212,213,0);
workbook.changePalette(color,55);
//Accessing the "A2" cell from the worksheet
cell = cells.get("B3");
//Adding some value to the cell
cell.setValue("Hello Aspose!");
//Setting the custom color to the font
style = cell.getStyle();
Font font = style.getFont();
font.setColor(color);
cell.setStyle(style);
//Saving the Excel file
workbook.save("data/AsposeColors.xls");
System.out.println("Aspose Colors Created.");