tor-browser/user-manual: secure-connections.page includes source of tor-and-https.svg
At the bottom of https://tb-manual.torproject.org/en-US/secure-connections.html the image source linked in secure-connections.page is inserted:
Specify "ltr" for left-to-right languages or "rtl" for right-to-left languages (e.g. Arabic or Hebrew). Keep it short: 7em max. Seven times the capital letter "M". Keep it short: 8em is ok, 9em is max. Keep it short: 3em max. Keep it short: 4em max. Tor and HTTPS image/svg+xmlTor and HTTPShttps://gitweb.torproject.org/user/lunar/tor-and-https.gitEFFEFF Lunar