Spreadsheet Cell Color Conventions

Is there some convention for coloring certain spreadsheet cells with certain colors to indicate the meaning/type of cell?

Excel provides the following. Is that an Excel thing or a broader color scheme and style convention?
Are there any best practices and/or guidelines for visually separating inputs, parameters, known constants, conversions, intermediate calculations etc...

I found this for financial data. Not sure how generally acceppted and expected that is.