Deprecated Default Values Without Square Brackets for Array, Set, and List Attributes    Setting a default value without square brackets is deprecated and can lead to unexpected behavior. To set a default value for these attribute types, surround comma-separated values with  [] ; for example,  default="['red', 'green', 'blue']" .   Where:  This change applies to orgs with Lightning components in Lightning Experience, Salesforce Classic, and all versions of the Salesforce app.   How:  Here’s an example of attributes for an array, a list, and a set.   <aura:attribute name="colorArray" type="String[]" default="['red', 'green', 'blue']" /> <aura:attribute name="colorList" type="List" default="['red', 'green', 'blue']" /> <aura:attribute name="colorSet" type="Set" default="['red', 'green', ...
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