* added settings dropdown to AnalysisExplorer
* added a dropdown menu for ColorDetector
* removed identify keyword from notebooks
* added test_init to test_colors
* include colors in AnalysisExplorer
* add kwarg for colors
* pre-selected options for color scheme
* constrain delta_e_method selection to valid options
* fixed tests in test_display
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Co-authored-by: Inga Ulusoy <inga.ulusoy@uni-heidelberg.de>