public static @NotNull String displayCharInEditor(char c, @NotNull TextAttributesKey textAttributesKey, @NotNull String fallback) {
    EditorColorsScheme scheme = EditorColorsManager.getInstance().getGlobalScheme();
    TextAttributes textAttributes = scheme.getAttributes(textAttributesKey);
    int style = textAttributes != null ? textAttributes.getFontType() : Font.PLAIN;
    FontInfo fallbackFont = ComplementaryFontsRegistry.getFontAbleToDisplay(c, style, scheme.getFontPreferences(), null);
    return fallbackFont.canDisplay(c) ? String.valueOf(c) : fallback;
  }
public static @NotNull String displayCharInEditor(char c, @NotNull TextAttributesKey textAttributesKey, @NotNull String fallback)