Open the file 'jbcore/classic/theme.css' in a plain text editor and remove lines 143-145 inclusive (which control the drop shadow around the main image):

-moz-box-shadow: 0px 0px 10px rgba(0, 0, 0, .4);
-webkit-box-shadow: 0px 0px 10px rgba(0, 0, 0, .4);
box-shadow: 0px 0px 10px rgba(0, 0, 0, .4);

Hello,
how does this work in JuiceboxBuilder-Pro 1.2?

I have removed the lines 174-178 and lines 667-673, but the shadow is still there.

Thanks for help!

Ole

Thank you, works fine.
And how can i delete the shadow of the caption?

Thanks for help!

Ole

Thank you, works fine.

Thanks for help!

Ole

To remove the drop-shadow from the Gallery Title in Large Screen Mode, edit the 'jbcore/classic/theme.css' file in a plain text editor and remove line 261:

text-shadow: 1px 1px 2px rgba(0,0,0,0.5), 0 0 5px rgba(0,0,0,0.2);

To remove the drop-shadow from the Gallery Title in Small Screen Mode, remove line 678:

text-shadow: 1px 1px 2px rgba(0,0,0,0.5), 0 0 5px rgba(0,0,0,0.2);

(The line numbers refer to Juicebox-Pro v1.2.0.)

In replacing the 'jbcore' folder in a gallery, you are converting the gallery to the version of Juicebox whose package the 'jbcore' folder came from.
The 'jbcore' fodler is the core Juicebox (non-image) part of the gallery.
When you upgrade Juicebox, the 'jbcore/classic/theme.css' file may change, in which case you would need to incorporate any customizations into the new file (rather than just replace it with your old one).

With regard to your query about removing the drop-shadow from the Gallery Title, as I mentioned, the line number I quoted refers to the 'jbcore/classic/theme.css' file from Juicebox-Pro v1.2.0.
It sounds like you wish to remove all drop-shadows from the gallery, in which case just open the 'jbcore/classic/theme.css' file in a plain text editor, search the file for all instances of 'shadow' and remove all the lines which contain this search term.

Please see the Juicebox - Version History for a full list of changes between versions.
If you use, for example, Juicebox-Pro v1.1.1, you would not be able to use the thumbsPosition 'LEFT' and 'RIGHT' options which were introduced in Juicebox-Pro v1.2.0.
Also, there are usually several bugfixes between versions so I would recommend keeping your version of Juicebox-Pro up-to-date.

@mustard

For a drop-shadow to the right and bottom of the main image in your gallery, try adding the following code to the end of your gallery's 'jbcore/classic/theme.css' file:

.jb-dt-main-frame .jb-dt-main-image {
    -moz-box-shadow: 10px 10px 10px rgba(0, 0, 0, .4) !important;
    -webkit-box-shadow: 10px 10px 10px rgba(0, 0, 0, .4) !important;
    box-shadow: 10px 10px 10px rgba(0, 0, 0, .4) !important;
}

You may also wish to increase the imagePadding configuration option in your gallery's XML file from the default value of 0 to something like 20 to accommodate the drop-shadow at the bottom of the main image.