the preserveAlpha attribute indicates how a <feConvolveMatrix> element handled alpha transparency.
A value of false indicates that the convolution matrix will apply to all channels, including the alpha channel. This is the default value.
A value of true indicates that the convolution matrix will only apply to the color channels.
| Categories | None |
|---|---|
| Value |
true | false
|
| Animatable | Yes |
| Normative document | SVG 1.1 (2nd Edition) |
The following elements can use the preserveAlpha attribute
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https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/preserveAlpha