Hi,

I want to set custom size thumbnail of my albums and images.
say square whether its vertical or horizontal images.

What setting and option I have to change to make it work ?

I want to show Square Thumbnails so the gallery looks descent not random horizontal vertical play ..

You probably have to modify the theme itself if the standard image options are greyed out.

yes under Option > Theme the thumbnail sizing is greyed out.
So dont know where to look for and edit .

Look at the theme files. Although the theme is more complex than standard themes you should be able to find the related files. There are several so it depends on what settings you use. (I am not in detail familiar with the theme)

Check the "crop thumbnails" in theme options. Couldn't get much easier.... Only the size is greyed out.

That crops the photo. He's looking to resize the whole image to a size larger than 100 (default)px.

That might require HTML and CSS changes as responsive grids often don't generally allow changing sizes that freely to work. Not familiar with what zpbase does how though.

Well I wish to set thumnail square 300x300px and want to set each album thumbnail via admin no auto cropping or random area as I have wildlife gallery and it is cropping my subjects randomly so I want to achieve the subject in frame.

I can do manual thumbnail selection in the each album.