in src/main/java/idea/plugin/psiviewer/util/Helpers.java [88:97]
public static Color parseColor(String rgba)
{
int red = 0, green = 0, blue = 0, alpha = 128;
String token[] = rgba.trim().split("\\s+");
if (token.length > 0) red = getSample(token[0]);
if (token.length > 1) green = getSample(token[1]);
if (token.length > 2) blue = getSample(token[2]);
if (token.length > 3) alpha = getSample(token[3]);
return new Color(red, green, blue, alpha);
}