Add a Tails icon for rEFInd

It would be good to have a Tails icon displayed in the rEFInd menu. This would help users choose the right entry, especially since the one that works is currently less appealing than the “Boot Linux from Tails” for the Linux kernel with EFI stub detected by rEFInd.

The image should be a 128x128 PNG file.

See http://www.rodsbooks.com/efi-bootloaders/refind.html for the tech details.

Parent Task: #5739 (closed)

Related issues

Related to #7160 (closed)

Original created by @intrigeri on 6529 (Redmine)

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information