Figma blend mode has a default value of “pass through”, but the default value for the “mix-blend-mode” property in CSS is “normal”. What is the corresponding value of “pass through” in the CSS property, and what is the difference between “pass through” and “normal”?
No difference if just a single layer. It can be used on a frame or group if you have a child layer set to another mode (e.g. Multiply) and want to affect the entire parent. So in that case the default would be Pass through and would show that child layer’s effect (Multiply), and then setting the parent to Normal would not (i.e. everything is Normal).
Not sure I would actually need/use that in real life, though.