I am trying to provide colors to my headers(first row) to all of my excel sheets, but it's not working. Am i missing something? Can you please provide your feedback
val workbook = XSSFWorkbook(inputStream)
val style: CellStyle = workbook.createCellStyle();
style.setFillForegroundColor(IndexedColors.GREEN.getIndex())
style.setFillPattern(FillPatternType.SOLID_FOREGROUND)
val font: Font = workbook.createFont()
font.color = IndexedColors.YELLOW.getIndex()
style.setFont(font)
val Sheet1 = workbook.createSheet("Sheet1")