Option to not rainbowify brackets of first level

[mikhail-dvorkin]

The current option doNOTRainbowifyBracketsWithoutContent is great, as I indeed want the usual gray color for the brackets in:
int a = f();

But! I also want the usual gray color for brackets in simple-to-parse-visually lines, such as:
int a = f(x, y, z);
and
for (int i = 0; i < n; i++) {
k *= i;
}

So the request is to add an option that will rainbowify the brackets only of the 2nd+ level: based on the level, and not on the presence of any content.

[izhangzhihao]

Good point!

[izhangzhihao]

Try this snapshot build version, the option "Do NOT rainbowify the first level" is false by default, stay tuned!
intellij-rainbow-brackets-5.19.zip