I like the style !
I can see on the screen different status : datasets loading, loaded or not. What is also important is the parameters used to generate them. It may be good to find a way to show the parameters used to generate something. For example on Customers which has the button ‘Save’, I guess it’s something which already run, but it would be good to know with which parameters it run, maybe with a tooltip or a dedicated space in the screen, or simply an information button near “Save”. An information button would be nice. As I understand the screen, a colleague would not have to run twice the same dataset, he would see that someone has already run it ? But he has to check with which parameters it was run before saving it on his side.
I wonder what are these “folders” that we see on the right screen. You can create/delete folders dedicated to data catalog item ? I think it can help to categorize things at least.
One nice option would be to change the color of the rectangles depending on the item. It would be a property to set on each item. Also why not introducing tags (or equivalent) to categorize items. It would be a little bit more rich than categorizing by folders.
If several dataset were run, why not adding a general “save”’ button to save them all with a generic name ?
At last did you think of sharing a dataset link ? I mean there is one dataset interesting in one folder and you want to share the place to someone. Why not provide a kind of link to get directly to it.
That’s only suggestions, the global look seems great !