Some icons doesn't have proper resolution

[osrl]

While custom Chrome, Android Studio and Postman icons have great resolution, the other icons look bad. I believe many icons have this problem. (I use 32 inch 2k display)

[elrumo]

Thanks for pointing it out, I've figured what the problem is. It's because of the scaling algorithm used, I've now updated it to use Bezier instead of Bilinear. This change will apply to all new icons, when time allows it I might apply it to existing ones.

Just to be sure, would you mind trying this Spark icon? I converted it using the updated scaling algorithm.
Spark Test.icns.zip

[techtheist]

@elrumo Hi! I just discovered that problem with resampling, started to prepare issue details, but there's already an issue :)
I also found old issue about same thing: #857

Hard-edged aliasing can be visible in launchpad, finder and other places. But not on dock.

Show the difference of .icns between local "Icon Maker Pro" result vs yours using icons i uploaded as example. Big Sur 11.1 4k.
Finder:

Launchpad:

Icns system preview:

Spark icon from site vs your example:

[osrl]

@elrumo your spark icon looks great now 👍

[osrl]

I just found out smoothscroll from @techtheist's screenshots and it's awesome :) @elrumo just an idea, Maybe you should make most downloaded sort option. It's a great way to discover new apps.

[techtheist]

Waiting for existing icons fix while my inner perfectionist getting sad 😃
Grateful for your work, elrumo!

_{^{Unnecessary example of good looking icons}}

_{^{@osrl check these apps on desktop — the result of their work is shown :)}}

[osrl]

Are they also fixed in the website? I can use telegram and transmission icons :)