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Inkscape: Guide to a Vector Drawing Program, Fourth Edition by Tavmjong Bah

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Glossary

alpha

The transparency of an object (or pixel). If an object with a non-maximal value of Alpha is placed over another object, the second object will be visible under the first. In Inkscape, a value of Alpha of 255 means the object is completely opaque, while a value of 0 means it is fully transparent (not visible).

Animated Portable Network Graphic (APNG)

An open standard for animated bitmap graphics, the animated parallel of the PNG standard and an alternative to MNG. There is support for this format in Firefox 3 and Opera 9.5 but the PNG group has rejected this extension to the standard.

Accessible Rich Internet Applications (ARIA)

An open standard for adding semantic content to web content. This is important for accessibility to those ...

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