How to do custom in-game thumbnails for B.A.T.s

[I. Lostalim 588]

I have seen people do custom in-game thumbnails like these for their BATs...

Every time I make a BAT, It looks like this...

It must be some sort of modding I suppose, but I have never found a way to do it.

Is there any way to make nice custom thumbnaiils like the image above?

Any help will be appreciated...

[Odainsaker 2,133]

The Omnibus seems to be lacking a proper contents index at the moment, however, some random digging finally brought up the appropriate article by deadwoods:

Simtropolis Omnibus: Creating Custom Lot Icons

This guide is primarily keyed to preparing a proper icon image strip using Adobe Photoshop, but if you are familiar with the basics of graphics editing software, the guide can be extrapolated to other popular graphics programs. Once the image is fully prepared, you will also need and be able to use a modding tool like iLive's Reader, DarkMatter's EasyTweaker, or iLive's LEProp. I've been using LEProp just because it has an easy image import button, avoiding the need to tinker with or accidently bungling hex codes, instance IDs, and exemplars.

[I. Lostalim 588]

The Omnibus seems to be lacking a proper contents index at the moment, however, some random digging finally brought up the appropriate article by deadwoods:

Simtropolis Omnibus: Creating Custom Lot Icons

This guide is primarily keyed to preparing a proper icon image strip using Adobe Photoshop, but if you are familiar with the basics of graphics editing software, the guide can be extrapolated to other popular graphics programs. Once the image is fully prepared, you will also need and be able to use a modding tool like iLive's Reader, DarkMatter's EasyTweaker, or iLive's LEProp. I've been using LEProp just because it has an easy image import button, avoiding the need to tinker with or accidently bungling hex codes, instance IDs, and exemplars.

Thank you very much!!!