there's a guide by wifiNOTgoood444 on how to upload custom thumbnails (which does seem to work for them based off their submissions), perhaps you could see if that helps?
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3577626884

引用自 |i.c.c.n|：

there's a guide by wifiNOTgoood444 on how to upload custom thumbnails (which does seem to work for them based off their submissions), perhaps you could see if that helps?
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3577626884

I did see that one, but was hoping there was another way since I'm on Linux. Running that custom window's app inside the game's container is a pain.

引用自 Solorvox：

引用自 |i.c.c.n|：

there's a guide by wifiNOTgoood444 on how to upload custom thumbnails (which does seem to work for them based off their submissions), perhaps you could see if that helps?
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3577626884

I did see that one, but was hoping there was another way since I'm on Linux. Running that custom window's app inside the game's container is a pain.

ahhh, dang :\ I tried looking into it further but so far it seems like the only option to change thumbnails is through some external program, sorry :[

the rover's build data is likely stored in the image itself via steganography[en.wikipedia.org], which would explain why you couldn't find any metadata (the 2008 game Spore did the same thing). in addition to being unable to edit the vehicle.png without losing rover data, it doesn't seem like the workshop thumbnail is actually stored locally at all? the closest I found while searching was a workshopPreviewTmp.png I found that generates in the save folder whenever you upload something to the workshop, and it gets replaced as soon as you upload/edit a workshop submission

引用自 |i.c.c.n|：

ahhh, dang :\ I tried looking into it further but so far it seems like the only option to change thumbnails is through some external program, sorry :[

the rover's build data is likely stored in the image itself via steganography[en.wikipedia.org], which would explain why you couldn't find any metadata (the 2008 game Spore did the same thing). in addition to being unable to edit the vehicle.png without losing rover data, it doesn't seem like the workshop thumbnail is actually stored locally at all? the closest I found while searching was a workshopPreviewTmp.png I found that generates in the save folder whenever you upload something to the workshop, and it gets replaced as soon as you upload/edit a workshop submission

Thanks for looking as well. I did find that the game's PNG layer name needs to match the slot number. It also marks the PNG as corrupt if it has more than one layer.

I too did wonder about steganography myself but... looking at the color layers I saw they seemed to have a notch in them that looked odd. Maybe it is just related to a LUT or limited color palette though.

Oh, and Terratech also stories data (metadata IIRC) in their PNG thumbnails. Maybe I'll write or port that app to Linux if I get the chance.