distinguish all timestamps within EXA_COLORS environment variable

[gabokamaze]

The environment variable EXA_COLORS allow us to customize coloration output. For example, if we want to color timestamp information with a specific color, one can set this :
EXA_COLORS="da=1;34"
But one things which could be better would be to distinguish Modified/Created/Accessed/Changed Timestamp.
For example dm for modified, dr for created, da for accessed and dh for changed, which could lead to something like :
EXA_COLORS="dm=1;31:dr=1;32:da=1;33:dh=1;33"

Is this feature could be implemented ?
Thanks by advance and thank you for this great tool !