We often get comments that Tryton is not eye-candy. This is based on a quick looking at the demo web client.
The rules for sao was to use the minimal CSS (not the theme) in order to use as custom.css any Bootstrap theme.
I think we could add to the demo one nice theme to give a better first impression. We could use one from https://bootswatch.com/3/
Cerulean
Cosmo
Cyborg
Darkly
Flatly
Journal
Lumen
Paper
Readable
Sandstone
Simplex
Slate
Spacelab
Superhero
United
Yeti
0voters
Please test the theme on sao before voting, the preview is not enough to decide
If you know other theme we should test, please put it in comment.
Just FYI. IIRC a few months ago we probed all the bootswatch themes and none of them fit perfectly into SAO.
Paper, in our opinion, is one of the best we can find out but as you can see it still have a little problem like the first screenshot @pokoli attached. In this case, for example, a selected row hides the values.
For sure a new theme will improve Tryton demo but I think it will need a few adjustments.