"true colours" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "p"
      },
      "expansion": "true colours pl (plural only)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English pluralia tantum",
          "parents": [
            "Pluralia tantum",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The organisation was officially concerned with economic development, but after the memo was leaked people began to see them in their true colours.",
          "type": "example"
        },
        {
          "ref": "1986, Billy Steinberg, Tom Kelly (lyrics and music), “True Colors”, performed by Cyndi Lauper",
          "text": "But I see your true colors / Shining through / I see your true colors / And that's why I love you / So don't be afraid to let them show",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The real character, belief or intent of a person or group who present a dishonest picture of their nature to the world."
      ],
      "id": "en-true_colours-en-noun-eqP9aLkV",
      "links": [
        [
          "real",
          "real"
        ],
        [
          "character",
          "character"
        ],
        [
          "belief",
          "belief"
        ],
        [
          "intent",
          "intent"
        ],
        [
          "dishonest",
          "dishonest"
        ],
        [
          "picture",
          "picture"
        ],
        [
          "nature",
          "nature"
        ]
      ],
      "related": [
        {
          "word": "show one's true colors"
        }
      ],
      "synonyms": [
        {
          "word": "true stripes"
        },
        {
          "word": "true colors"
        }
      ],
      "tags": [
        "British",
        "plural",
        "plural-only"
      ]
    }
  ],
  "word": "true colours"
}

{
  "head_templates": [
    {
      "args": {
        "1": "p"
      },
      "expansion": "true colours pl (plural only)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "show one's true colors"
    }
  ],
  "senses": [
    {
      "categories": [
        "British English",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English pluralia tantum",
        "English terms with quotations",
        "English terms with usage examples"
      ],
      "examples": [
        {
          "text": "The organisation was officially concerned with economic development, but after the memo was leaked people began to see them in their true colours.",
          "type": "example"
        },
        {
          "ref": "1986, Billy Steinberg, Tom Kelly (lyrics and music), “True Colors”, performed by Cyndi Lauper",
          "text": "But I see your true colors / Shining through / I see your true colors / And that's why I love you / So don't be afraid to let them show",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The real character, belief or intent of a person or group who present a dishonest picture of their nature to the world."
      ],
      "links": [
        [
          "real",
          "real"
        ],
        [
          "character",
          "character"
        ],
        [
          "belief",
          "belief"
        ],
        [
          "intent",
          "intent"
        ],
        [
          "dishonest",
          "dishonest"
        ],
        [
          "picture",
          "picture"
        ],
        [
          "nature",
          "nature"
        ]
      ],
      "tags": [
        "British",
        "plural",
        "plural-only"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "true stripes"
    },
    {
      "word": "true colors"
    }
  ],
  "word": "true colours"
}