If you want to change the colors and style of your invoice, it is very easy! Give an overview of the invoice you want to change, or if you created now, after saving the system will automatically give you an overview of the invoice. To the right of the invoice has fields with instruments. Most - the bottom have two fields, one is drop-down menu where you can choose in what way (style) seem invoice you (style 1, style 2, etc.). Under the dropdown have 4 squares in different colors, click the color you have chosen and keep (the button below the boxes).