Unexpected dark color of primary button and selected button in button group since 5.8.2-dev.5

[Dimitar-Goshev]

Describe the bug A clear and concise description of what the bug is.

To reproduce Steps to reproduce the behavior:

1. Use the following setup https://dojo.telerik.com/@Dimitar-Goshev/uZiyARas and reference the bootstrap-main-dark swatch from 5.8.2-dev.5

Actual behavior The text color of selected buttongroup button is dark as on the screenshot below

Expected behavior The text color of selected buttongroup button is lights as on the above Dojo

Screenshots

Affected package (please remove the unneeded items)

• theme-bootstrap

Affected suites (please remove the unneeded items)

• Kendo UI for jQuery

Affected browsers (please remove the unneeded items)

• All

Build system information (please remove the unneeded items)

• Not Applicable

[joneff]

While it may seem counter intuitive, the reported issue is not a bug, but rather a statement: indeed the contrast color of that particular shade of blue is black, rather than white.

That's not to say we are leaving the issue like that, or we are not targeting it -- quite the contrary -- we are! While implementing a fix regarding dark themes in general, we took the opportunity to transfer the logic of Bootstrap 5.3.0-alpha for dark themes into our.

It's not perfect yet, but that's still an alpha... Sill, the improvement targets this issue.