thanks for answers.
I'd like to use caption in overlay top and button bar in overlay center bottom.
I have several questions.
q1. your autolink off to remove text underlining and <br /> for multiline work fine but i have typed 3 lines of 82 characters and third one doesn't appear (overlay top mode). I set width=200 and height=120 but not sure it works in overlay mode. using height=200 changes nothing. Do you know why ? is there a limit for number of characters ? Moreover I would prefer caption computes automatically its size according to its content
q2.when there is only one line in caption and page number (always in overlay mode), the line is very tiny and lower part of "g"... are a little eaten. I would have thought at a 10px "padding" (or margin...) on top and bottom of caption text to have a little space on each side. possible ?
q3. page number on right is not very beautiful. usually in slideshow we see something like :
<page number> <filename>
<caption line N>
is it possible to create such "title/cation" syntax ?
q4. to fill height with thumbs, it would be nice to have an option to put next/prev arrows near the left and right sides (or across) of thumbs instead of your center position which takes lot of width. possible in a near future ?