Custom Look and Feel
To override core look and feel functions, or add project specific look and feel functions you can use a dedicated LookAndFeel namespace.
Create this in a new file: App/LookAndFeel.js.
This file should be included in on init after Manifest.js and Style.js and before Core.js.
At the top of the file you should get a reference to the core Styles object so you have access to it throughout the script.
namespace LookAndFeel
{
const style = CoreLookAndFeel.style; // Colours and properties
const fonts = style.fonts; // Loaded fonts and text properties
}
Check the Core Look And Feel chapter for a reference of the available overrides.