Loading material theme in Emacs 29.1 triggers the following warnings:
Warning: setting attribute ‘:background’ of face ‘message-header-newsgroups’: nil value is invalid, use ‘unspecified’ instead.
Warning: setting attribute ‘:background’ of face ‘message-header-name’: nil value is invalid, use ‘unspecified’ instead.
Warning: setting attribute ‘:foreground’ of face ‘message-header-cc’: nil value is invalid, use ‘unspecified’ instead.
Warning: setting attribute ‘:foreground’ of face ‘message-header-other’: nil value is invalid, use ‘unspecified’ instead.
Warning: setting attribute ‘:background’ of face ‘message-header-other’: nil value is invalid, use ‘unspecified’ instead.
Warning: setting attribute ‘:foreground’ of face ‘link’: nil value is invalid, use ‘unspecified’ instead.
Warning: setting attribute ‘:background’ of face ‘diff-file-header’: nil value is invalid, use ‘unspecified’ instead.
Warning: setting attribute ‘:background’ of face ‘diff-header’: nil value is invalid, use ‘unspecified’ instead.
Warning: setting attribute ‘:background’ of face ‘header-line’: nil value is invalid, use ‘unspecified’ instead.
Warning: setting attribute ‘:background’ of face ‘mode-line-buffer-id’: nil value is invalid, use ‘unspecified’ instead.
Loading material theme in Emacs 29.1 triggers the following warnings: