Metadata reports alpha as false, yet image has alpha channel

[Grunthos]

When opened in Gimp, image has transparent areas, yet reader reports no alpha. Am I missing something?

[Grunthos]

Ahhh...I think the image has no alpha it has a transparent colour defined

[Grunthos]

Yep, needed to check for trans block. Would be really convenient if this was automatic.

[leonbloy]

PNG supports transparency in several ways, https://stackoverflow.com/a/13570973/277304

I'm no sure this kind of intelligence belongs to this library, but I'll think it over