1Go To Declaration in navigationstyles.xml for colorBackground"> @color/cust^om_theme_color </item>:
2Open Declaration in values/navigationstyles.xml :  [@color/custom_theme_color]
3    L/PROJECTNAME/res/values/navigationstyles.xml
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6After open, the selected text is:
7    [^<color name="custom_theme_color">#b0b0ff</color>]
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