Help in customising Widget channel

[VikalpBhatt]

Hi Team Im trying to customise the css, stylesheet, colour, font and others to reflect the Oscava bot I have created using one of your sample. Can you please help me with an example?

I do see the reference of
WidgetChannel.ExportResources(@"D:\SOME_EXISTING_DIRECTORY");

but not quite sure how to assign values to the variables like [SYN_INPUT_PLACEHOLDER]