you'll need to search through the forums. even in the new patch, making those icons is still a pain of at least 10 steps...

Thanks, Want to make sharing the stuff i make good for everyone, i know how frustrating not having a icon is.

click on the folder icon next to the thumb icon. delete the pic named asset_thumb and replace it with a 109 by 100 pixel pic (if it's a different size it will scrunch it for you) which you should name asset_thumb. you might need to have it in png format.

so i just rushed through the process

1) make your asset, make a few screenshots with the ingame screenshot icon and maybe some extra stuff with windows screenshots

2) when you're about to save the asset, keep the save window open. click the small folder icon near the thumbnails, that will open the temporal folder where the thumbnails will be saved

3) right click the images in this folder and edit them (by default in microsoft paint for example)
inmediately when they opened, write down their original sizes (109x100 for example)

4) edite the images like you want. paste whatever screenshot you had into paint, modify size and stuff, exit and save the file overwriting the original

repeat step 3+4 for each picture you want to do. i only care about thumbnail and description. i delete the rest

5) now in the game asset editor you'll already see the updated icons. save, exit & share

Thanks for the details phoenix, I actually got a intersection asset to work and now has a icon on the workshop and locally, But i cant get it to do it on anything else, it starts doing some double name asset like hugepark.crp (hugepark.crp)). Have no clue why its changing the save name and even says its overwriting.

Edit: I am going to make a new asset and see what happens with the icons, I was doing it on already made ones.

Any have tips for old assets ? plz

2/when you're about to save the asset, keep the save window open. click the small folder icon near the thumbnails, that will open the temporal folder where the thumbnails will be saved

a/click the small folder icon near the thumbnails does not exist.
b/ the temporal folder where the thumbnails exist
i put icons save the file overwriting the original and nothing ! no icons

+1
please make this easier to fix.