Hi, I'm on BS v3 so using the 3.4.1 library version right now. Seeing an issue where the following features for the material select don't seem to work, can you take a look? 1, Using the colourful-select CSS classes to add some colour/styling 2, Using the nested/grouped select functionality (the optgroups stay flat and provide no visual clue to the nesting) Is this simply not implemented in v3? If it is, then I can provide some more details so we can figure it out together. Cheers, Aaron

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