code: def test_inject_term_colors(self):
      tdm = build_hamlet_jz_corpus_with_meta()
      freq_df = tdm.get_term_freq_df()
      scatter_chart = ScatterChart(
          term_doc_matrix=tdm, minimum_term_frequency=0
      )
      scatter_chart.inject_term_colors({"t1": "00ffee"})
      j = scatter_chart.to_dict("hamlet")
      self.assertIn("term_colors", j["info"])
  
imports: import sys
  from unittest import TestCase
  import numpy
  import pandas
  from scattertext import LogOddsRatioUninformativeDirichletPrior, scale
  from scattertext import ScatterChart
  from scattertext.ScatterChart import CoordinatesNotRightException, TermDocMatrixHasNoMetadataException, NeedToInjectCoordinatesException
  from scattertext.test.test_corpusFromPandasWithoutCategories import get_term_doc_matrix_without_categories
  from scattertext.test.test_semioticSquare import get_test_corpus
  from scattertext.test.test_termDocMatrixFactory import build_hamlet_jz_term_doc_mat, build_hamlet_jz_corpus_with_meta
label_desc: Use image node_id 13 for calling the TestScatterChart obj's underlying member method code with example usage: obj.test_inject_term_colors() without return types