Hello Divvi,
To get the solution for your query you need to go through the following link in which you can understand that In templates and tables to color the background of individual cell and creating box lines for each cell boxes and shading is used. Highlighting sum of any particular cell or heading boxes and shading in SAP Scripts is used. It gives a unique appearance to the cell highlighting the main aspects to reflect easily. Using table painter enables you to adjust boxes and shading for template. Being static in structure the boxes and shading reflect on the form as they appear on the table painter and shows that setting or adjusting boxes and shading are independent of the line type. The process will be given in the following links:
http://www.stechies.com/simple-smartform-tutorial/