Created attachment 288780 [details]
shot

Seems like something for Jakub to fix.

Created attachment 318945 [details] [review]
featured banner: force precise px size

- force precise image size for the transmission picture in pixels
  Still seems to be oversampled and fuzzy.

This changes it (hidpi screenshots)
from: https://kalev.fedorapeople.org/gnome-software-featured-transmission1.png
to: https://kalev.fedorapeople.org/gnome-software-featured-transmission2.png

Still pretty jagged lines though.

Less than stellar anti-aliasing is from the Inkscape export (see the image itself). However even when forcing the exact same size, the image seems to be oversampled/smoothed. Perhaps scaled.

A good test would be with a 1px dot/checkerboard pattern.

Created attachment 318969 [details]
seems to work fine with 16x16

Created attachment 318971 [details]
but not larger images like 640px

Created attachment 318972 [details]
640x640px black and white checkboard test used

it was used like this:

[transmission-gtk.desktop]
background=url('@prefix@/share/gnome-software/featured-transmission.png') 10% 20% / 640px 640px no-repeat, -gtk-gradient (radial, center bottom, 0, center center, 0.8, from(#ffc124), to(#b75200))
stroke=#a40000
text=#ffffff
text-shadow=0 1px 1px rgba(0,0,0,0.5)

Comment on attachment 318945 [details] [review]
featured banner: force precise px size

Attachment 318945 [details] pushed as 5e0fe70 - featured banner: force precise px size