Free abstract lines PPT Backgrounds

This free Light Blue Abstract Lines powerpoint template is another abstract powerpoint design with light effects and curved lines that was consisted of blue colour tones.

Free Orange Abstract Lines powerpoint template is abstract background design with curves and light lighting effects that you can download and use in modern presentations.

"Blue-Green Lines" powerpoint template is another abstract design. This is a nice template for powerpoint presentations that you can download and use as an abstract background.