The editor update is now released. LemSet update and Cheapo conversion tool are still on their way.

This update will be especially convenient for those who are using custom graphic sets.

New style system is fully functional now. I just need to make the changes that correspond to Player V1.29n's changes to steel areas, then I can release the update.

EDIT: So far, I've made it able to preserve these settings (though I still need to test that said code works properly, which I'll do within the next 10 minutes). I haven't yet added support for editing these settings.

Swimmers don't destroy terrain if bombed while swimming. And indeed, it's mentioned that allowing lemmings to get below the water line can cause graphical glitches. Still, I'll see what I can do about that.

Alright, I'll look into it once I'm done with the editor update and touching up the Cheapo tools.

The idea (if I got it correctly) of having one style folder with the basic sets for all and simply just copy all the new tilesets for NeoLemmix, Lemmini....  in the dedicated folder without changing the ini every time would be a blessing 

Not quite. There's still a dedicated folder for each engine (or collection; as you might want to have one folder for Orig, one for OhNo, etc when working with Traditional Lemmix); these folders have to be listed in an INI (though of course, there'll already be entries by default for CustLemm, NeoLemmix, Lemmini and SuperLemmini). However, adding new styles to the folders will simply be a matter of copying the folder into the style, without having to modify the INI - although with traditional Lemmix (and NeoLemmix in the case of styles using the VGAGRx.DAT / GROUNDxO.DAT naming system), you'd probably want to modify an INI (but don't have to), if you don't want them to simply be named "vgagr0", "vgagr1" etc in the editor.

Also, the need for the "Compile Styles" option is no longer there; in fact the option itself will be removed. The editor can now load the styles directly. (I've already implemented the direct-load without compiling, I haven't removed the Compile Styles menu option yet but at the moment there's no point in using it.)

Once I'm closer to getting it fully implemented, I'll post some screenshots to better illustrate how it works.

I don't know too much about the L2 styles, but from my understanding, they're tile-based rather than piece-based. This could make them quite fiddly to use.

Unless you're meaning "take the Lemmini conversions of these styles, and make them into NeoLemmix-compatible styles", in which case that shouldn't be too hard at all.

I'm currently working on making it MUCH more convenient to add new styles to the editor. It'll only be of limited help with traditional Lemmix levels, but it should make things virtually drag-n-drop for Lemmini, NeoLemmix and SuperLemmini.

Basically, the new setup will be that there's a "styles" folder, and the NeoLemmixStyles.ini file will be in there. But it doesn't have to have information about each graphic set; just about each collection of graphic sets (ie: you'd need the "NeoLemmix" entry, the "SuperLemmini" entry, etc; but you wouldn't need an entry for the Dirt style, an entry for the Fire style, etc). Each collection of sets is in its own subfolder in here. Within these can (but doesn't have to) be an INI file with further info.

For Lemmini styles and SuperLemmini styles, as well as NeoLemmix styles using the new "g_[name]"/"v_[name]"/"x_[name]" naming scheme, you can simply copy the styles into the respective folder and NeoLemmix Editor will automatically detect it next time you start up the editor. You can also do this for traditional Lemmix styles (and NeoLemmix styles using the older "ground#o"/"vgagr#"/"vgaspec#" naming scheme), but of course it can't magically pull a name out of thin air, so in-editor they'll simply be referred to as, eg, "VGAGR0" or "VGASPEC0". That's where the optional INI comes in - you can define names for these styles there.

The INI can also be used for (Super)Lemmini styles, or NeoLemmix styles with the newer scheme. This could be useful if, for example, you want to also assign a graphic set number to a (Super)Lemmini style, which of course could matter if you're saving the style directly to a Lemmix format. Or, if you want a tidier or different name than the style's internal name (for example, you might rather have "Dirt" than "dirt", or you might prefer "Christmas" to "xmas" or "Sunsoft Special" to "hebereke").



As far as actually implementing it (rather than just planning it) goes, I've so far only implemented it for (Neo)Lemmix styles, and haven't implemented support for the optional INI yet. It'll be implemented in full before the release, though. That aside, the only thing left to implement is support for the variable-sized one way areas that are used in Cheapo level conversions.