Hmm... Yes, it changes something but not as yours...
In the ThumbnailScroller config section of my theme, I checked "autohide" and set "autohide_offset" to 50. When I maximize for the first time a picture in my gallery, the thumbnail scroller partially shows as I want to. Then I move my mouse over it and the hovered thumbnail zooms. It's ok. But now if my mouse goes out of the thumbnail scroller zone (if I move my mouse to the big picture for instance), the thumbnail scroller
completely disappears... although I would like it to be again partially visible...
Thank for your patience and your help...
Here is an excerpt from my themeConfig.xml :
<thumbnailscroller>
<start_scale>40</start_scale>
<active_scale>100</active_scale>
<start_brightness>30</start_brightness>
<active_brightness>100</active_brightness>
<space>10</space>
<frame_width>6</frame_width>
<frame_color>0x000000</frame_color>
<frame_color_active>0xFFFFFF</frame_color_active>
<back_color>0x000000</back_color>
<alpha>100</alpha>
<alpha_active>100</alpha_active>
<back_alpha>25</back_alpha>
<back_alpha_active>100</back_alpha_active>
<scrollbar_height>8</scrollbar_height>
<autohide>true</autohide>
<autohide_offset>50</autohide_offset>
</thumbnailscroller>
Do you need more or anything else ?
ps. the phenomena seems to be exactly the same with autohide set to false...