With the changes from https://github.com/Ultimaker/Cura/pull/15692 logic regarding the exclude materials printer setting changed. It has never worked properly before. Now that it works properly again a ton of materials were excluded that were never intended to be excluded.
As we can never be sure if an exclude material was intended or not we decided to be pretty agressive in removing exclude materials. This way the behavior is closed to the behavior prior to the exclude material fix.
There was one case were we decide to leave an exclude material in. If a printer has a material diameter of `175` *and* the material would specifically specify the `175` substring (e.g. `dsm_arnitel2045_175`). When this is the case we were pretty certain it was intended to exclude this material.
CURA-10599
Some contributors seem to have a shift key stuck here or there. Many 'stylised' capitalisations weren't reflected even on the manufacturer's websites, or were also stylising words like 'pro' and 'dual' or even actual chemical names like 'nylon'. Normalising the caps makes it more fair for everyone, since all of these are written in the same font.
As discussed with the Cura team.
This should make it a bit easier for others to create a new definition since there is less for them to 'have to know'. Previously they would be required to fill in as category Other, but now they can just leave the category out.
