Core tiddler colour cascades can be found in $:/core/macros/tag, $:/core/ui/Components/tag-link, $:/core/ui/EditTemplate/tags, $:/core/ui/TagPickerTagTemplate, $:/core/ui/TagTemplate and $:/core/ui/ViewTemplate/title
# If the tiddler $:/config/DefaultTiddlerColour exists, use the value as the colour
You can see the current settings for the tiddler colour cascade in $:/ControlPanel under the ''Info'' -> ''Advanced'' -> ''Cascades'' -> ''Tiddler Colour'' tab.