[Enhancement]: Update branding and add clear downloads for assets

[jonbarrow]

Checked Existing

• I have checked the repository for duplicate issues.

What enhancement would you like to see?

Branding

Right now our branding is not consistent. We use various versions of logos, icons, etc. in various platforms

For example, on Twitter, Mastodon, BlueSky, and Discord we use our logo which is a deep dark purple with a white "P" surrounded by a rainbow:

However on our website we tend to use a logo which is just a light purple "P", with no consistent background (taking from whatever is behind it):

Our larger banners are also not consistent. Sometimes the word "Pretendo" is followed by a purple period (like on Discord and BlueSky), and other times it is not (like on Mastodon and the website):

Also notice how on Discord we are actually using BOTH versions of our logo (the white "P" in the server icon, and the purple "P" in the banner), which is even less consistent.

This is not great for brand recognition, as we keep using multiple variations of our logos in multiple places. We should rework our branding and settle on a consistent set of icons, logos, banners, etc. and update our website and social media with them.

Assets

Right now it's hard for people to access our brand assets for use in their own content. This is partially due to the aforementioned inconsistent branding issue, but also because we've changed designs so much over the years there's tons of old versions of our logo/banner floating around online. Once we have a consistent set of branding assets, we should provide them for download on the website. Many other companies do this (usually called a "branding toolkit"), along with terms of use, such as https://developer.adobe.com/distribute/cc-brand-assets and https://about.twitter.com/en/who-we-are/brand-toolkit. Offering our branding for download like this would make it easier for content creators to find and use our assets.

Any other details to share? (OPTIONAL)

No response