How to disable static height cropping of the portfolio slider images
By default the theme crops the portfolio slider images to the same height:
If you would like to adjust this height or make the cropped images preserve their original ratios, you can adjust this for the corresponding slider layout (Full-width slider or Slider with side content) in the Theme Options -> Slider Settings -> Portfolio Slider section:
If you would like to disable the static height cropping, just leave the “Image Height” option for the corresponding slider layout empty or you can alternatively disable the “Automatic image resizing” option.