Go to the slide you want to adjust by going to: Components -> DJ-ImageSlider -> Slides and click the slide you want to edit or create new one.
You'll find two new fields in slide's edition under "Images attributes" section:
- ALT attribute
- TITLE attribute.
Now when you fill these fields with your SEO friendly attributes, they'll be visible for search robots as well as can help your users navigate through the website WCAG-wise.
After you save the slide the attributes will be visible in your website's source: