README logo image not visible using GitHub dark mode

[aljo242]

Since the logo is all black with a transparent background, it is very hard to see when using dark mode on GitHub. A non-transparent image could probably solve this.

Screen grab:

[tony-iqlusion]

Another way to fix this is using the prefers-color-scheme CSS selector in the SVG:

@media (prefers-color-scheme: light/dark) { .. }