[jira] [Created] (ARROW-15125) [Website] Social media link preview image looks bad in dark mode

[Ian Cook (Jira)]

Ian Cook created ARROW-15125:
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             Summary: [Website] Social media link preview image looks bad in 
dark mode
                 Key: ARROW-15125
                 URL: https://issues.apache.org/jira/browse/ARROW-15125
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Website
            Reporter: Ian Cook
         Attachments: image-2021-12-15-21-18-51-137.png

The social media link preview image (a.k.a. social share image) for the Arrow 
site looks really really bad when displayed on Twitter with dark mode switched 
on:

!image-2021-12-15-21-18-51-137.png|width=495,height=349!

I don't know whether this affects the preview image on other social media sites.

This is happening because the preview image is a transparent PNG image with 
black content on a transparent background, and the background becomes black in 
dark mode, leaving barely visible black on black.

I believe the preview image is controlled by these {{<meta>}} elements 
(depending on which social media site the preview is displayed on):
{code:java}
<meta property="og:image" content="https://arrow.apache.org/img/arrow.png";>
<meta property="twitter:image" 
content="https://arrow.apache.org/img/arrow.png";>{code}
I think the simplest way to fix this would be to point these {{<meta>}} 
elements to a PNG image with an opaque white background.

Perhaps it's also possible to specify separate social share images for light 
and dark mode, but I'm not sure about that.



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