I've been reading about Canvas, it seems to get a lot of stick for not being accessible. Certainly a lot of criticism for flutter web using it. When is it good and not good to use? I'm assuming games it's good for.
Complete novice so looking forward to being educated. Thanks.
The reason it's faster is because it is designed for that sort of thing, whereas web pages are meant to be mostly static, which is a good thing. Different use cases
The browser can’t really do much with those shapes in terms of accessibility. Perhaps zooming or increasing contrast? The cases where it makes sense are few. Also, svg support has gotten better, and is easier to use, if you need simple animations embedded within a regular, otherwise accessible page.
Hope that helps.
General advice: treat it like an image. If an image is good for the job, a canvas will be as well. Otherwise, if it is essential for navigation or getting the gist of that page, you may consider complementary elements or an all together different approach. However, if there is no sense in an alternative representation (like in the case of an arcade-style game), this type of content should be still allowed.