x/pkgsite: missing transparency in gopher plane image

[taradaidv]

Example URL: https://pkg.go.dev/404
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4.1 Safari/605.1.15

Hi, the placeholder image https://pkg.go.dev/static/shared/gopher/airplane-1200x945.svg has two problems in the dark mode. Since we always strive for perfection, let's not overlook the flaws in the brand image...

Bug:

Fix:

Attached a corrected image, with love for GO community:

[adonovan]

You have a keen eye! I'll have our team graphic designers get on it at once. ;-)

[linsite]

👍 I believe it's fixed by now. Please check it. @taradaidv

[taradaidv]

👍 I believe it's fixed by now. Please check it. @taradaidv

Cleared the cache in the browser before checking.
Checked, no changes, white spots still there. Maybe the CDN cache hasn't updated.

[linsite]

Yes, you are right. My browser's background is white, failed to see that, my bad.