An00nymushun
An00nymushun
You can use CSS to have the emojis colored, it's in the issues but I might put it in the readme. I think I could make a userscript version, but...
It might be worth doing, unless Discord plans to deprecate PNGs for stickers.
Maybe you don't have embed links/attach files permissions in the channel you are trying to use it in.
The file was not saved properly, download by Alt-clicking on the Raw button when viewing the file (in chrome) or click on the Code button in the repo view and...
I'm fairly sure the nitro perks thing is caused because their way of spoofing nitro is too rough and it tricks the plugin into thinking you don't need it because...
If it's specific servers then it's likely that it's permission related, such as they have denied the external stickers permission. 
It seems to work for me. Are you using the normal version, PTB or Canary? Also, check if you have permission to upload files in the channel.
It should work now
Are you using DiscordFreeStickers 1.3.1 ? Do you get any error messages in the devtools console?