A Cell Style is a great way to make important data stand out on a sheet, SpreadJS provides styles to customize your text to give it the exact look you want. You can add a variety of styles and colors to your text, as well as borders or gridlines of cells.

Give your text a specific color and font style by using the font method of the Cell object. SpreadJS uses syntax of css font, same as the way to set font for other DOM elements.

Plus, give different color or line style borders to a range of cells by using the setBorder method of the Sheet object. It provides many options to easily determine which part of the cell range to set.

gridline

And you also can change the color of the gridline, even hide the gridline to make your data stand out on the sheet.
Go to Wijmo web site to read entireĀ blog and source code.