As Muli provide consolidated information on many reports, adopt a common display format for Accounts Payable & Account Receivable transactions across all reports. This included constant colour for the same information element.
 

There is a convention that is being largely followed:

Black indicates positive value

Red indicates a negative number(bad).

Blue negative values are good

as example 

Folio

Project   Red

Allocation   Green

Order

Organisation 

Dates

Cheque / payment Cyan

Invoice scope

GST in yellow

 

Muli standarises information presentation assisting the user to becoming proficient.