How do I post an avatar image?

[LSLGuy]

Here’s my older post partly explaining how the Discourse icon generator works.

Is every icon unique?

I investigated the HTML. The icons are generated on the fly using a simple interface that specifies the letter to be used, the RGB color value in hex, and the size in pixels. Which means there are 256^3 = 16,777,216 possible colors for any given letter. Though humans (and their monitors) can’t discern nearly that many different colors in the gamut. Times 26 letters gives 436,207,616 possible icons. I don’t know if a Discourse username can start with a non-letter. The icon generator always ren…

Here’s the rest of the story.
This is an example of an auto-generated icon I grabbed from another user:
https://avatars.discourse-cdn.com/v4/letter/t/ea5d25/90.png
And this is the corresponding url:

https://avatars.discourse-cdn.com/v4/letter/t/ea5d25/90.png

• The letter to generate is given in the part of the URL after “/letter/”. You can use upper or lower case in the url and it’ll always generate an uppercase response.
• The next section is the hex RGB code for the background. You can find yours by looking at the generated icon on the change-icon popup.
• Finally, the name part of the filename.png is the size in pixels.

So that Url makes a T, with a background color of #EA5D25 that’s 90 pixels square.

Happy diddling!