private void configureGraphicsContext(GC gc) {
        if (fontColor != null) {
            gc.setForeground(fontColor);
        }
        gc.setBackground(getTextWidget().getBackground());
    }
Disables the suggestion text painter functionality.

@param clearContent if true, removes any displayed hint before disabling the painter.
plugins/org.jkiss.dbeaver.ui.editors.sql/src/org/jkiss/dbeaver/ui/editors/sql/suggestion/SQLSuggestionTextPainter.java