Reproduction
Use StackBlitz to reproduce your issue: https://stackblitz.com/edit/angular-drag-and-drop-themes-bug
I Can only reproduce changing primary color to first, in my env also all styles were missed.
Steps to reproduce:
- Create few themes (+ picker mechanism)
- Create drag and drop component (with @mixin background color from theme).
- Put in cdkDrag any mat element with color
- Run & Change theme to another
- Do some works on drag and drop panel.
Expected Behavior
Dragged elements will in this same styles/colors like chosen theme.
Actual Behavior
Dragged elements haven't any styles + primary colors are fetched from first theme.
Environment
- Angular: 7.1.0
- CDK/Material: 7.2.0
- Browser(s): Chrome & Firefox
- Operating System (e.g. Windows, macOS, Ubuntu): macOS and Docker (on Linux) on test server.


Reproduction
Use StackBlitz to reproduce your issue: https://stackblitz.com/edit/angular-drag-and-drop-themes-bug
I Can only reproduce changing primary color to first, in my env also all styles were missed.
Steps to reproduce:
Expected Behavior
Dragged elements will in this same styles/colors like chosen theme.
Actual Behavior
Dragged elements haven't any styles + primary colors are fetched from first theme.
Environment