Hi there,
I'm not sure where this sits; whether it's a setting in a graphical editor but I have only seen this in Magento and wondered if anyone else has encountered it:
Exported image:
![test.png test.png](https://community.magento.com/t5/image/serverpage/image-id/20665i2A5582B9D5EA484D/image-size/large?v=v2&px=999)
Once uploaded to Magento, displays and downloads as:
![test_2.png test_2.png](https://community.magento.com/t5/image/serverpage/image-id/20666i2AD059964405E7E1/image-size/large?v=v2&px=999)
It seems to occur on images with areas of solid colour. What is causing this and how can it be avoided? Thanks