Suggestion: make the tail of lowercase L a tiny bit more pronounced.

I love Source Sans. It's a great font to use in contexts where legibility is important. I've noticed a small quirk though: in certain contexts, the tail of the letter `l` is so subtle that it is nearly invisible. In my experience, this is a legibility concern, particularly in contexts where discerning the identity of each letter is important, e.g. when the letter `l` appears standalone (as demonstrated below), or when it appears in a password or serial number.

I would like to propose that the tail of the letter `l` be lengthened slightly, so that it is more easily noticed. I've made a mockup below that demonstrates the kind of adjustment I'd like to see.

Source Sans today:

The adjustment I'm proposing:

To more clearly observe the difference between the two images, I suggest opening them both in a new tab and flicking between them.

I'm not specifically proposing the (crude) adjustment pictured in the mockup. The kerning might also need to be tweaked. Anything that makes the tail on the `l` a bit more pronounced would be fine.

Please let me know what you think.