Marcel

- summary is missing: I think, it's a good idea to have a summary section at the end of each chapter - there is nothing mentioned about performance. Could that...

maybe the title of this section should be: "An advanced example: Porting from HTML5 Canvas" to emphasize this …and tried it ourself: quite colloquially typo: Finally we inmpleted -> Finally...

maybe the title of this section should be: "An advanced example: Canvas Paint" to emphasize this The colors are stored in an array and the paint color: sentence makes no...

typo: putImageData(imagedata,, dx, dy): comma twice a code example for createImageData, getImageData and putImageData would be nice; maybe the same example as below, just with different calls typo: When the...

maybe the composition modes (source-*) should be explained, because it might not be known by everybody or add a link to further information about it an image illustrating the output...

typo: around it’s center -> around its center back-link: ch07/index.html#transformation

For this you need can specify: need or can context is your only API: maybe context is the only API … "you" is quite colloquially, not sure, if this is...

typo: gradient to it’s defined -> gradient to its defined back-link: ch07/index.html#gradients

typo: and does need -> and doesn't need back-link: ch07/index.html#convenient-api

typo: needs and ellipse -> needs an ellipse typo: The canvas elements provides -> The canvas elements provide typo: The context 2D object, contains: no comma typo: with a starring...