My custom styles no longer seem to be applying after upgrading Angular Material from version 14 to 15. What could be causing this issue

Having some challenges with the migration from Angular 14 to Angular 15 when it comes to overriding material UI elements and themes. Looking for blog posts or documentation that can provide guidance on how to smoothly transition.

Specifically, experiencing issues with styles being overridden in material components such as input fields, select dropdowns, autocompletes, and text fonts.

Despite following the official Angular migration guide and running the 

ng generate @angular/material:mdc-migration
, I found that the material components were migrated successfully but ended up having the default styles override my existing manual styles after the migration process.

cssangularangular-materialangular15angular-migration

Answer №1

It would be helpful to have some concrete examples for clarification.

The reason for this confusion could likely stem from angular material's shift in class names between versions 14 and 15.
For instance, the .mat-form-field mentioned previously would now be .mat-mdc-form-field in v15.
One suggestion is to do a global search in your codebase for all instances of ".mat-" and replace them with ".mat-mdc." This should address most if not all conflicts. However, it's important to watch out for exceptions like ".mat-icon".

Answer №2

It appears that the issue at hand is quite specific. The Material Components are proving to be resistant to any changes made in styles.scss. Despite attempting to modify the Border Attribute, the element remains unaffected. The BorderBottom property stubbornly stays at 0.

Take a look at this image for reference: not overwriting css in MDC Compontents

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