How do you alter a non-Steam game's icon in macOS?

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SolidSonicMania 2023年12月12日 7時52分

I can't seem to select any image file to act as an icon.

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1-15 / 16 のコメントを表示

Beetroot Bertie 2023年12月12日 10時12分

Do you mean the icon in the library list on the left?

SolidSonicMania 2023年12月12日 10時37分

Beetroot Bertie の投稿を引用：
Do you mean the icon in the library list on the left?

Yeah, I think so.

I added Sonic Dream Team to my Steam library on macOS but when I try to modify the icon I can't select anything to serve as that icon. Does it need to be in a specific format to act as the icon?

Beetroot Bertie 2023年12月12日 11時32分

I'm wondering if something's changed in Steam as I have a folder of PNG files I'd used in the past for this purpose but they can't be selected now. I thought maybe they need to be a certain format like GIF or ICO files but they don't seem to be accepted. Just tried some Targa/tga files too (32px square) and they don't work either. No file format seems valid when you browse to a folder containing them and drag and drop doesn't work.

No idea what else to suggest :(

最近の変更はBeetroot Bertieが行いました; 2023年12月13日 4時17分

ybnorml1 2023年12月12日 22時08分

something about mac os going all 64 bit "NO 32bit" any more

SolidSonicMania 2023年12月13日 7時36分

ybnorml1 の投稿を引用：
something about mac os going all 64 bit "NO 32bit" any more

I can't select a PNG as an icon because of that...?

Beetroot Bertie 2023年12月13日 7時54分

I doubt it's that, more likely something missing/broken with the Mac client. In High Sierra (which still supports 32-bit apps) it still doesn't work. I've quickly checked it in Windows and both PNG and TGA files work for non-Steam games (JPG, GIF and ICO files not so).

最近の変更はBeetroot Bertieが行いました; 2023年12月13日 7時55分

Zav 2023年12月13日 8時27分

If you know where the game's executable is, I suspect you can just do a get info and past in the icon. The executables are generally in ~/Library/Application Support/Steam/steamapps/

zadowcloud 2023年12月19日 8時05分

Having the same issue! Even tried going into the files to add it manually but no luck so far. Here's the location if anyone wants to try:
/Users/<user>/Library/Application Support/Steam/userdata/<id>/config/grid

Alice 2024年4月9日 10時30分

Yeah same problem here

The LJs 1月25日 15時18分

Still can't set custom icons on mac in 2025. :( I added a bug report here: https://steamcommunity.com/groups/SteamClientBeta/discussions/0/600768571255127802/

最近の変更はThe LJsが行いました; 1月25日 15時25分

#10

SolidSonicMania 1月31日 5時31分

The LJs の投稿を引用：
Still can't set custom icons on mac in 2025. :( I added a bug report here: https://steamcommunity.com/groups/SteamClientBeta/discussions/0/600768571255127802/

Does it really matter, though? Soon enough Intel Macs are going to be unsupported and then, poof, there goes Steam gaming on Mac with it.

#11

elrevert 2月6日 9時56分

Worked out a solution and put it in r/macgaming, posting here as well. The process is finicky and probably not worth the effort, and there's almost definitely an easier way to do it but this is what worked for me:

1. You need Visual Studio Code. This is just what worked. Textedit will not work, I have tried it.
2. Put your icons (png format, might work with jpeg etc I haven't tried) in a folder somewhere. Doesn't matter where. They will need to stay here permanently.
3. Go to /users/<user>/Library/Application Support/Steam/userdata/<id>/config
4. Open shortcuts.vdf with Visual Studio Code. It will give an error, click open anyway and choose the text editor. This is a Valve Data File containing (what I can only assume is) Valve engine-specific characters, which are showing up in red here.
5. Find 'icon'. There should be three of the red characters following it.
6. Paste the full path to your icon file after the FIRST red character (no spaces), leaving two red characters after it.
7. Save and restart steam.
8. You should now see your icon in the library, but the game name may be blank. You can just rename it in the properties as normal.

#12

fabe 2月7日 19時38分

#13

Tim 3月12日 10時32分

SolidSonicMania の投稿を引用：
The LJs の投稿を引用：
Still can't set custom icons on mac in 2025. :( I added a bug report here: https://steamcommunity.com/groups/SteamClientBeta/discussions/0/600768571255127802/
Does it really matter, though? Soon enough Intel Macs are going to be unsupported and then, poof, there goes Steam gaming on Mac with it.

Steam works on ARM powered M series Macs, so this is still an issue that should be fixed.

#14

Aeson 3月23日 1時00分

elrevert の投稿を引用：
Worked out a solution and put it in r/macgaming, posting here as well. The process is finicky and probably not worth the effort, and there's almost definitely an easier way to do it but this is what worked for me:

1. You need Visual Studio Code. This is just what worked. Textedit will not work, I have tried it.
2. Put your icons (png format, might work with jpeg etc I haven't tried) in a folder somewhere. Doesn't matter where. They will need to stay here permanently.
3. Go to /users/<user>/Library/Application Support/Steam/userdata/<id>/config
4. Open shortcuts.vdf with Visual Studio Code. It will give an error, click open anyway and choose the text editor. This is a Valve Data File containing (what I can only assume is) Valve engine-specific characters, which are showing up in red here.
5. Find 'icon'. There should be three of the red characters following it.
6. Paste the full path to your icon file after the FIRST red character (no spaces), leaving two red characters after it.
7. Save and restart steam.
8. You should now see your icon in the library, but the game name may be blank. You can just rename it in the properties as normal.

it works for me, thx