SUMMARY
***
When you change your global theme from "Breeze" to "Breeze twilight", It won't change the color of the panel as shown in the thumbnail. (plasma style i guess.)
You need to change your theme into "Breeze dark" then move back to breeze twilight, that way it applies breeze twilight correctly.

See this clip (it actually shows two bugs Breeze twilight also doesn't follow the accent color): https://mega.nz/file/VYtBRKiJ#uD8PLhBrdoofQhjlqSjrUOXfxlG8YGFvD7XNChz_Wpw
***


STEPS TO REPRODUCE
1. Open Settings while you are on light theme
2. Select "Breeze Twilight" Global Theme
3. Hit "Apply"

OBSERVED RESULT
The color of the pannel and kickoff menu doesn't change.

EXPECTED RESULT
Breeze with white color and black panel/kickoff

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.23.5
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2
Kernel Version: 5.16.3-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-6400 CPU @ 2.70GHz
Memory: 7.6 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 530

ADDITIONAL INFORMATION