Having an arbitrary curve defined as `InterpolatingFuntion`, what is the best way to place a text on this curve? The text generally has two rows, for example: "This is\na text on a curve", the curve must go between the rows. I am interested both in character-based (preserving characters as selectable textual elements) and outlined solution (the text is first converted to outlines, then a transformation is applied to the resulting curves). It would be perfect to have a possibility to move the text along the curve interactively.