Hello,
im wondering if it is possible in vaadin flow to use sass. In Vaadin 7 we had styles like
background: darken($v-background-color, 10%);
darken is available in sass also variables. Is this still possible somehow in vaadin flow?
The official tooling of Vaadin 10+ is not using SASS in Lumo theme at all. So there is no out of the box support for this.
Technically speaking it is not impossible to use SASS with Flow though, there is even instructions here
https://phauer.com/2019/vaadin-10-sass-integration-css-refresh/
Note however, this does not mean that you could use Valo theme with Flow, since the components in Vaadin 10+ are not using those stylenames or variables in any way.