Bootstrap 5.2.0-beta1 > not all components have been ported to CSS vars for colors

Created by: vinorodrigues

Prerequisites

• I have searched for duplicate or closed issues
• I have validated any HTML to avoid common problems
• I have read the contributing guidelines

Describe the issue

I have been working on adjusting the Bootstrap-Dark-5 POC to 5.2.0-beta1 and noticed some components have not been fully ported to use CSS vars. From my observations I have picked up the following:

• .blockquote-footer > color
• .img-thumbnail > background-color
• .figure-caption > color
• ...umm... the whole shebang under the forms sub-folder, e.g., .form-control > color, .form-control-plaintext. .form-select, etc.
• + the validation color .. i.e. .was-**, .invalid-*, etc.
• .alert-* .alert-link > color
• .btn-close > color
• all the .carousel-* stuff, e.g. .carousel-control-* > color
• .offcanvas-backdrop > background-color

Reduced test cases

Not really a test case thing - I just did a search on https://github.com/twbs/bootstrap/blob/main/dist/css/bootstrap.css for classes where color was not a var(.

What operating system(s) are you seeing the problem on?

macOS

What browser(s) are you seeing the problem on?

Chrome

What version of Bootstrap are you using?

v5.2.0-beta1