Add a line break between categories in a JSON string.

example.json

{
    "gradientDark010": "linear-gradient(90deg, rgba(48, 48, 48, 0) 0%, rgba(48, 49, 49, 1) 100%)",
    "gradientLight010": "linear-gradient(90deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 1) 100%)",

    "overlayDark010": "overlayDark010",
    "overlayDark020": "overlayDark020",
    "overlayDark030": "overlayDark030",
    "overlayDark040": "overlayDark040",
    "overlayDark110": "overlayDark010",
    "overlayDark120": "overlayDark020",
    "overlayDark130": "overlayDark030",
    "overlayDark140": "overlayDark040",
    "overlayLight010": "overlayLight010",
    "overlayLight020": "overlayLight020",
    "overlayLight030": "overlayLight030",
    "overlayLight040": "overlayLight040",
    "overlayLight110": "overlayLight010",
    "overlayLight120": "overlayLight020",
    "overlayLight130": "overlayLight030",
    "overlayLight140": "overlayLight040",

    "amber010": "rgba(255, 227, 176, 1)",
    "amber020": "rgba(255, 210, 132, 1)",
    "amber030": "rgba(255, 192, 88, 1)",
    "amber040": "rgba(255, 173, 44, 1)",
    "amber050": "rgba(255, 153, 0, 1)",
    "amber060": "rgba(255, 143, 0, 1)",
    "amber070": "rgba(255, 130, 0, 1)",
    "amber080": "rgba(255, 114, 0, 1)",
    "amber090": "rgba(255, 96, 0, 1)",
    "amber100": "rgba(255, 75, 0, 1)",

    "black": "rgba(0, 0, 0, 1)",

    "white": "rgba(255, 255, 255, 1)",

    "blue010": "rgba(235, 245, 255, 1)",
    "blue020": "rgba(195, 224, 255, 1)",
    "blue030": "rgba(141, 195, 255, 1)",
    "blue040": "rgba(91, 169, 255, 1)",
    "blue050": "rgba(38, 142, 255, 1)",
    "blue060": "rgba(0, 114, 238, 1)",
    "blue070": "rgba(0, 86, 180, 1)",
    "blue080": "rgba(0, 62, 129, 1)",
    "blue090": "rgba(0, 48, 100, 1)",
    "blue100": "rgba(0, 26, 54, 1)",

    "green010": "rgba(220, 252, 220, 1)",
    "green020": "rgba(137, 244, 137, 1)",
    "green030": "rgba(0, 222, 0, 1)",
    "green040": "rgba(0, 193, 0, 1)",
    "green050": "rgba(0, 165, 0, 1)",
    "green060": "rgba(0, 138, 0, 1)",
    "green070": "rgba(0, 104, 0, 1)",
    "green080": "rgba(0, 75, 0, 1)",
    "green090": "rgba(0, 58, 0, 1)",
    "green100": "rgba(0, 31, 0, 1)",

    "neutral010": "rgba(243, 243, 243, 1)",
    "neutral020": "rgba(220, 221, 221, 1)",
    "neutral030": "rgba(190, 191, 191, 1)",
    "neutral040": "rgba(165, 166, 166, 1)",
    "neutral050": "rgba(141, 142, 142, 1)",
    "neutral060": "rgba(117, 119, 119, 1)",
    "neutral070": "rgba(88, 89, 89, 1)",
    "neutral080": "rgba(62, 63, 63, 1)",
    "neutral090": "rgba(48, 49, 49, 1)",
    "neutral100": "rgba(25, 26, 26, 1)",

    "purple010": "rgba(178, 195, 213, 1)",
    "purple020": "rgba(147, 161, 195, 1)",
    "purple030": "rgba(117, 124, 177, 1)",
    "purple040": "rgba(93, 88, 159, 1)",
    "purple050": "rgba(80, 59, 140, 1)",
    "purple060": "rgba(71, 30, 121, 1)",
    "purple070": "rgba(80, 25, 107, 1)",
    "purple080": "rgba(84, 20, 93, 1)",
    "purple090": "rgba(79, 16, 73, 1)",
    "purple100": "rgba(64, 12, 48, 1)",

    "red010": "rgba(251, 242, 240, 1)",
    "red020": "rgba(242, 215, 211, 1)",
    "red030": "rgba(231, 179, 172, 1)",
    "red040": "rgba(221, 147, 138, 1)",
    "red050": "rgba(211, 115, 103, 1)",
    "red060": "rgba(208, 72, 55, 1)",
    "red070": "rgba(178, 20, 0, 1)",
    "red080": "rgba(129, 14, 0, 1)",
    "red090": "rgba(101, 11, 0, 1)",
    "red100": "rgba(57, 6, 0, 1)",

    "fabulous010": "rgba(255, 240, 246, 1)",
    "fabulous020": "rgba(255, 208, 227, 1)",
    "fabulous030": "rgba(255, 163, 200, 1)",
    "fabulous040": "rgba(255, 121, 175, 1)",
    "fabulous050": "rgba(255, 65, 141, 1)",
    "fabulous060": "rgba(234, 0, 94, 1)",
    "fabulous070": "rgba(179, 0, 71, 1)",
    "fabulous080": "rgba(130, 0, 52, 1)",
    "fabulous090": "rgba(102, 0, 41, 1)",
    "fabulous100": "rgba(59, 0, 24, 1)",

    "football010": "rgba(237, 245, 242, 1)",
    "football020": "rgba(202, 226, 217, 1)",
    "football030": "rgba(155, 201, 183, 1)",
    "football040": "rgba(113, 179, 153, 1)",
    "football050": "rgba(73, 157, 124, 1)",
    "football060": "rgba(32, 134, 98, 1)",
    "football070": "rgba(34, 99, 73, 1)",
    "football080": "rgba(25, 71, 52, 1)",
    "football090": "rgba(19, 54, 41, 1)",
    "football100": "rgba(10, 28, 22, 1)",

    "money010": "rgba(249, 242, 245, 1)",
    "money020": "rgba(236, 215, 225, 1)",
    "money030": "rgba(219, 179, 198, 1)",
    "money040": "rgba(205, 150, 175, 1)",
    "money050": "rgba(191, 121, 152, 1)",
    "money060": "rgba(182, 86, 128, 1)",
    "money070": "rgba(145, 59, 97, 1)",
    "money080": "rgba(103, 42, 70, 1)",
    "money090": "rgba(79, 32, 53, 1)",
    "money100": "rgba(42, 17, 28, 1)",

    "motors010": "rgba(241, 243, 251, 1)",
    "motors020": "rgba(215, 220, 243, 1)",
    "motors030": "rgba(179, 189, 234, 1)",
    "motors040": "rgba(149, 163, 226, 1)",
    "motors050": "rgba(119, 137, 218, 1)",
    "motors060": "rgba(91, 111, 211, 1)",
    "motors070": "rgba(63, 82, 169, 1)",
    "motors080": "rgba(44, 58, 119, 1)",
    "motors090": "rgba(34, 44, 92, 1)",
    "motors100": "rgba(18, 24, 48, 1)",

    "news010": "rgba(238, 243, 250, 1)",
    "news020": "rgba(205, 223, 241, 1)",
    "news030": "rgba(160, 195, 229, 1)",
    "news040": "rgba(121, 170, 219, 1)",
    "news050": "rgba(83, 146, 208, 1)",
    "news060": "rgba(58, 121, 187, 1)",
    "news070": "rgba(43, 92, 140, 1)",
    "news080": "rgba(31, 65, 99, 1)",
    "news090": "rgba(24, 49, 76, 1)",
    "news100": "rgba(12, 26, 40, 1)",

    "showbiz010": "rgba(244, 242, 254, 1)",
    "showbiz020": "rgba(224, 216, 252, 1)",
    "showbiz030": "rgba(198, 181, 249, 1)",
    "showbiz040": "rgba(177, 150, 247, 1)",
    "showbiz050": "rgba(158, 119, 245, 1)",
    "showbiz060": "rgba(139, 83, 241, 1)",
    "showbiz070": "rgba(114, 36, 219, 1)",
    "showbiz080": "rgba(81, 23, 160, 1)",
    "showbiz090": "rgba(63, 16, 126, 1)",
    "showbiz100": "rgba(34, 6, 74, 1)",

    "sport010": "rgba(236, 245, 247, 1)",
    "sport020": "rgba(199, 226, 230, 1)",
    "sport030": "rgba(149, 199, 208, 1)",
    "sport040": "rgba(105, 177, 189, 1)",
    "sport050": "rgba(63, 154, 170, 1)",
    "sport060": "rgba(37, 129, 145, 1)",
    "sport070": "rgba(34, 97, 108, 1)",
    "sport080": "rgba(25, 68, 77, 1)",
    "sport090": "rgba(19, 52, 59, 1)",
    "sport100": "rgba(10, 27, 31, 1)",

    "tech010": "rgba(241, 243, 248, 1)",
    "tech020": "rgba(211, 222, 235, 1)",
    "tech030": "rgba(174, 193, 218, 1)",
    "tech040": "rgba(142, 168, 203, 1)",
    "tech050": "rgba(119, 144, 176, 1)",
    "tech060": "rgba(98, 120, 149, 1)",
    "tech070": "rgba(74, 89, 110, 1)",
    "tech080": "rgba(52, 63, 79, 1)",
    "tech090": "rgba(41, 48, 59, 1)",
    "tech100": "rgba(22, 26, 32, 1)",

    "travel010": "rgba(230, 246, 255, 1)",
    "travel020": "rgba(173, 228, 255, 1)",
    "travel030": "rgba(70, 205, 249, 1)",
    "travel040": "rgba(0, 180, 223, 1)",
    "travel050": "rgba(0, 155, 192, 1)",
    "travel060": "rgba(0, 129, 160, 1)",
    "travel070": "rgba(0, 97, 122, 1)",
    "travel080": "rgba(0, 69, 87, 1)",
    "travel090": "rgba(0, 53, 67, 1)",
    "travel100": "rgba(0, 28, 37, 1)",

    "tv010": "rgba(251, 240, 252, 1)",
    "tv020": "rgba(245, 209, 247, 1)",
    "tv030": "rgba(236, 167, 241, 1)",
    "tv040": "rgba(229, 128, 235, 1)",
    "tv050": "rgba(222, 82, 229, 1)",
    "tv060": "rgba(186, 66, 192, 1)",
    "tv070": "rgba(142, 48, 146, 1)",
    "tv080": "rgba(102, 33, 105, 1)",
    "tv090": "rgba(79, 23, 82, 1)",
    "tv100": "rgba(45, 10, 47, 1)",

    "socialFacebook": "rgba(24, 119, 242, 1)",
    "socialInstagram": "rgba(195, 42, 163, 1)",
    "socialReddit": "rgba(255, 69, 0, 1)",
    "socialTwitter": "rgba(29, 161, 242, 1)",
    "socialWhatsapp": "rgba(37, 211, 102, 1)",
    "socialYoutube": "rgba(255, 0, 0, 1)",

    "sun010": "rgba(255, 240, 240, 1)",
    "sun020": "rgba(255, 210, 210, 1)",
    "sun030": "rgba(255, 168, 168, 1)",
    "sun040": "rgba(255, 127, 128, 1)",
    "sun050": "rgba(255, 76, 77, 1)",
    "sun060": "rgba(235, 23, 1, 1)",
    "sun070": "rgba(179, 18, 1, 1)",
    "sun080": "rgba(130, 12, 1, 1)",
    "sun090": "rgba(101, 10, 0, 1)",
    "sun100": "rgba(57, 5, 0, 1)",

    "inkBase": "neutral090",
    "inkBrand010": "sun060",
    "inkContrast": "neutral100",
    "inkHeadingLink": "neutral100",
    "inkHeadingLinkActive": "neutral090",
    "inkHeadingLinkHover": "neutral090",
    "inkHeadingLinkVisited": "neutral100",
    "inkInformative": "blue060",
    "inkInverse": "white",
    "inkLink": "blue060",
    "inkLinkActive": "blue080",
    "inkLinkHover": "blue070",
    "inkLinkVisited": "purple060",
    "inkNegative": "red060",
    "inkNonEssential": "neutral030",
    "inkNotice": "amber060",
    "inkPositive": "green060",
    "inkSubtle": "neutral060",

    "semanticInformative010": "blue060",
    "semanticNegative010": "red020",
    "semanticNegative020": "red030",
    "semanticNegative030": "red060",
    "semanticNegative040": "red070",
    "semanticNegative050": "red080",
    "semanticNotice010": "amber060",
    "semanticPositive010": "green010",
    "semanticPositive020": "green020",
    "semanticPositive030": "green060",
    "semanticPositive040": "green070",
    "semanticPositive050": "green080",

    "interface010": "white",
    "interface020": "neutral010",
    "interface030": "neutral020",
    "interface040": "neutral030",
    "interface050": "neutral040",
    "interface060": "neutral100",
    "interfaceBackground": "white",
    "interfaceBrand010": "sun060",
    "interfaceBrand020": "sun070",

    "Inverse": "white",

    "disabled": "neutral010",

    "interactive010": "blue020",
    "interactive020": "blue030",
    "interactive030": "blue060",
    "interactive040": "blue070",
    "interactive050": "blue080",
    "interactive110": "neutral020",
    "interactive120": "neutral030",
    "interactive130": "neutral080",
    "interactive140": "neutral090",
    "interactive150": "neutral100",
    "interactive210": "neutral030",
    "interactive220": "neutral050",
    "interactive230": "blue060",
    "interactive240": "blue080",
    "interactive250": "blue030",

    "skeleton010": "neutral010",
    "skeleton020": "neutral020",

    "transparent": "transparent"
}

Split Categories.js

function splitWords(s) {
	var re, match, output = [];
	// re = /[A-Z]?[a-z]+/g
	re = /([A-Za-z]?)([a-z]+)/g;

	match = re.exec(s);
	while (match) {
		output.push([match[1].toUpperCase(), match[2]].join(""));
		match = re.exec(s);
	}

	return output;

}

function splitCategoriesJSON(data){
let str = JSON.stringify(data, '\n', 4)
let arr = str.split('\n')

let prevCat = null
arr.forEach((item,index) => {
  
 let cat = splitWords(item)[0]
  if(prevCat !== cat && index != 1 && index != arr.length-1){
    arr[index-1] += '\n'
    
  }
 prevCat = cat
})

str = arr.join('\n')
return str
}