Some TimelineItem isn't styled when use the native light theme as a base for GitHub Dark

[Geeyun-JY3]

• Browser: Cent Browser 4.3.9.248 (64-bit) (Chromium 86.0.4240.198), Chrome 87.0.4280.141 (Official Build) (64-bit)
• Operating System: Windows 10 20H2 19042.685
• Link to page with the issue: user's profile > Contribution activity
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[silverwind]

Generally we recommend dark theme as the base setting in Github. We did invert these timeline images once, I guess the selector for them must have gone stale.

[the-j0k3r]

Generally we recommend dark theme as the base setting in Github

This is just unwise, especially when the whole ball of yarn was spun around light theme always, and dark theme is not exactly the same in all places.

having said that, youre right these images were fixed by me once, but it would be helpful to have links to these pages not just screenshots.