Abstract waving spectrum lines is blue, yellow and green colors in the background for your ppt.
http://www.pptbackgrounds.net/waving-spectrums-backgrounds.html
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abstract
background
backgrounds
black
blue
border
business
butterflies
butterfly
christmas
colorful
design
floral
flower
frame
free
free ppt
gradient
gray
green
happy new year
light
lights
lines
nature
new year
orange
paper
power point
powerpoint
ppt
ppt backgrounds
presentation
professional
purple
red
sky
slides
square
template
templates
tree
wave
white
yellow
Useful Links
- Microsoft Office Online Free Templates for Office Online
- PowerPoint Background PowerPoint Background
- SlideBackground Slide background
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