The globalvars.ini is there for two things: handling the variables and configuring the mod's configurables (AllowChange lines). In the original 2014 mod, the variable compound was used to define which of the 4 Treads subfolders (MediumHard, SoftMedium, SupersoftMedium, SupersoftSoft) will be put in the wad. This was handled by the 2014.csm, with the line
Tyres=Tyres\Sidewalls,Tyres\Treads,Tyres\Treads\%compound%. This line defines which folders contain the tyre textures, in this case 3 folders in total (seperated by the comma). The last one depends on the compound variable, hence the percentage signs (%).
With the changes made, this is no longer necessary. Now all files in the Tyres\Textures folder will be put in the wad, the compound variable is no longer used. I could have deleted it from the globalvars.ini, but that wasn't necessary. That's why I also doubt that you noticed changes when renaming compound to textures in the globalvars.ini, unless you didn't follow my instructions.
Looking at your pics I think you don't have the correct shape, as the tread texture, which contains tread and sidewall, is completely mapped on the tread, while the sidewalls only use the wheel textures.
I'd need your performance.txt, 2014.csm and Tyres folder (pics which show the structure and files, or uploaded, doesn't matter) to be able to help you further.
As for my changes to the Types:
I don't have to specify which type is used in wet/monsoon conditions, they work absolutely fine if I don't put the type lines in the perf file. Without these lines, when choosing Intermediate tyres, I have the green intermediate textures (tread_1), and when choosing wet or monsoon tyres I have the blue wet textures (tread_2/3). However, in the Pirelli era, the wet tyres are mainly used in extreme wet conditions, else the drivers stick to the inters (see Suzuka).
When I now add the type lines in the perf file, I have the green intermediate textures (tread_1) when choosing inters or wet tyres, and the blue wet textures (tread_2) only when I choose monsoon tyres.
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