clear_button Sass code has issues compiling via LibSass

[cpsievert]

When trying to compile Sass -> Css via LibSass, I see:

Error: overloaded function `rgba` given wrong number of arguments
        on line 10:16 of inst/www/shared/selectize/plugins/clear_button/plugin.scss
        from line 80:9 of inst/www/shared/selectize/scss/selectize.scss
        from line 53:9 of inst/www/shared/selectize/scss/selectize.bootstrap5.scss
        from line 21:9 of stdin
>>         color: rgba(0, 0, 0);

Appears this problem could be solved by changing rgba(0, 0, 0) to rgb(0, 0, 0) (or just black):

[github-actions]

This issue is stale because it has been open 90 days with no activity. Remove stale label or comment or this will be closed in 5 days

[cpsievert]

Commenting to keep open