"Color Ramp"+"svg"+mix or overlay layers

Godot Version

4.2.1.S

Question

title=“Color Ramp”+“svg”+mix or overlay layers
Blender 4.0:“Color Ramp”=Godot 4.2.1:“?”
I want to use “Light” + “Color Ramp” + “Brightness” + “Contrast” + “Hue” + mix multiple layers and set the intensity (A+B) or (A*B) or (PNG’s black and white image *Color Ramp),
Preferably a “VS” shader, as simple as Blender,
What are the names of “Color Ramp” and “PNG image” in “Godot4.2”?
How to use this logic in “Godot4.2”?
I don’t understand what the “Blending” options of “Blender4.0”, such as “Blending” and “Overlay” and “Value (Brightness)” mean, and what their names are in Godot4.2.
Can I use a vector image file? For example, “Eye_Mask_Black and White.svg” is a “white circle” + “black background”, and put “Color Ramp” in the white part.
Will using “vector graphics” such as “svg” eliminate blur?
What vector graphics format can be used with Godot4.2?
What should you pay attention to when saving “svg” or using “svg”?
It took me more than a year to learn these things, but I still haven’t mastered them yet.
Did you deliberately spend a lot of time memorizing these names and processes?

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