Fallback image for Twitter/OG meta tags point to non-existent image [open-graph.html]

[joetor5]

Currently, the page head rendering is pointing to a non-existent image for Twitter/OG image meta tags (open-graph.html fallback logic):

<meta name="twitter:image" content="https://bitcoincore.org/assets/images/default-thumb.png">

<meta property="og:image" content="https://bitcoincore.org/assets/images/default-thumb.png">

Should we point to one of the existing images or bring a new one for this? bitcoin_core_logo.png might be a good candidate.

[katesalazar]

Blame @harding :P

[katesalazar]

Oh it was @btcdrak

Sorry David

[katesalazar]

Oof hell this falls back to the initial commit

[joetor5]

I submitted PR #1038 for this to use bitcoin_core_logo.png as the default. It's better than nothing and it's the actual logo 😄 .