How to change the thumbnail image size

Step 1

In your WordPress administration area, go to Sunshine > Settings > Galleries

Step 2

Enter new dimensions for your thumbnail images. Check the “Crop” option if you want the images cropped to the exact dimensions entered, or leave unchecked to use those dimensions as a maximum height/width but maintain aspect ratio.

Step 3

Changing these settings will not automatically update all the thumbnail images in your galleries. This currently requires a separate WordPress plugin, Regenerate Thumbnails. Install this plugin and activate it.

Step 4

Go to “Tools > Regen. Thumbnails” and initiate the thumbnail regeneration.