Can we change the colours for a Flashing Cell column?
Yes you can choose any colours you want for both the up and down change.
Can we change the default colours?
Not at runtime. But developers can change what the default colours are which will affect all users.
Can we change the colour based on the row (e.g. depending on other values in the row, the flash will be different colours or duration)?
Not at present but its something we might add.
Can we add longer durations (i.e. for the flash to remain in place for 5 seconds or even until the cell is next updated)?
Not at present. We have been asked to introduce the facility to keep a flash in place until the next cell edit but we are not yet decided whether to do that as part of flashing cells or introduce a new function that will offer this.