Pixelfed as a brand is represented by two primary symbols, logo and mascot. This is a detailed description and a guide for usage of both of them.
When using Pixelfed logos you need to keep in mind that it's to
represent software and creators of the software. Usage of the
logos in ways which are incompatible with that idea is not
recommended.
Circle consists of 5 equal segments of circle, each made out of big circle pie style segment with a halfcircle of half of diameter of the outer circle connected by the straight edge to the radius edge on the bottom side when starting with radius cutting the circle directly to the east from the center of it. Colours are applied to the segments clockwise based on colours below, starting with the shape furthest northeast. Shadow is applied as a difference between the segment and segment offset by 10% of the absolute width of the circle away from the center of the circle, black 30% transparency. On top of that overlaid is white shape consisting of halfcircle on the right, connected to a sqare with rounded edge on top left of 25% radius on the right, 1/3rd width, 2/3 height, 2/3 width of total shape, connected to a sqare triangle on bottom left, edge width 1/3:1/3 of the shape. That shape is of width of 1/3 of the circle, perfectly in the middle of the circle. Symbolic version lacks shadows and the circle is not segmented.
1/4 of the total size offsets around the logo
Green
Blue
Purple
Red
Yellow
InterUI is used as a font next to logos.
Fred is the mascot of Pixelfed, it's a red panda, which is orange with brown accents. It can be drawn in any style, those images are just shown as examples of the ways Pixelfed represents it.