@infograf768 where do we get the flags from? Maybe they have larger size available?

@brianteeman I would suggest to replace the old gifs with these https://github.com/lipis/flag-icon-css

We got them from various sources. Sometimes made them to size from larger ones found on the Net. Sometimes made them up totally (Tamil).

@Chacapamac

The solution for you is simple: do NOT delete the flags existing as anyway they are used in back-end.
If you want to use bigger flags (you have to make them) in frontend, make an override for the langswitcher module (mod_languages/default.php) in your template html folder. For example:
replace every occurence of
$language->image . '.gif' by
$language->image . '.png'

and add the new .png files in media/mod_languages/images/

Seems a good idea to me. If we can fix an issue in core then we shouldn't
tell people to make an overr

i don't know if the flags used by crowdin are free to use, but they are png and have a nice definition
if a decision to change the language flags to png is done, it seems a good start point...

@brianteeman it can be done with no B/C break: https://css-tricks.com/svg-fallbacks/

@andrepereiradasilva good idea, but still svg is a better format (scalable)

you meand svg with fallback: svg > png > gif?
ie8 and some old browsers does not support svg right? http://caniuse.com/#feat=svg

Yup! Use svg for good browsers and fall back to our gifs for IE8

I've already started some work on this but there are too many files that need to be renamed and that's a boring process. Some day, with no actual work, I will finish this. I guess I can publish the branch if someone wants to do the remapping...

go for it

For the flags, I will start with vector (Adobe Illustrator) Files
Not sure of the copyright of these set of 6 files for a total of 287 flags (Seem REALLY Precise…)
Find here —> http://all-free-download.com/free-vector/download/various-of-world-flags-vector-set_525993.html
Author —> http://freedesignfile.com/29665-various-of-world-flags-vector-set-04/
File Source —> http://www.zcool.com.cn

License: Creative Commons (Attribution 3.0)

Not sure if usable,

I saw good set to sale ($10) where I get my photos (License only restriction “Not for Resale Item”)

@Chacapamac svgs ARE vector and from https://github.com/lipis/flag-icon-css the license is ok to use in joomla

IIRC the flags are being revisited in 4.0 (and I think there's either an issue or PR somewhere for that), at this point I don't think we're going to change them in 3.x.

Some discussion is here: #12014

Some of the SVG's for these flags are huge. IIR, one of them was about 480kb

Closing here as @mbabker stated they are not going to be changed for 3.x and we have an issue for 4.x #12014

Can PSD File be Supported..