The total number of colors on p>ppt

should not exceed five. Since it is a bid, the company's logo must always be available. Take the secondary color of the company's logo as the background. If there are multiple secondary colors, take the lightest color as the background and the deepest color in the logo as the font color.

if the secondary colors are all dark, use the deepest background and the lightest color as the font color

in addition, the corporate image design should have strict specifications of PPT background color when bidding.