I was trying to figure out where, exactly, I was supposed to add theme=“dark” and the reference to “valo-colors” in my own Polymer layout. I stumbled upon the following by googling (!)
So four suggestions:
reference the above mentioned document on valo theming/styling in the flow documentation
tell people where to ask questions about Flow – there is no reference to this forum, found it by luck at the bottom of the list, am not even sure anyone from Vaadin reads it.
Include an example of applying the dark theme in a polymer layout (declaratively, with the correct inclusion of valo-colors, preferably in a layout that only includes an off-the-shelf component. A fully worked out paper-slider example, dark and light, without the rest, would be nice).
Where can one find the proper current version numbers for the now quite numerous Maven, Springboot, Bower dependencies…