Do you remember in generation 1-4 in several games ranging from Pokemon Stadium 1 & 2, Pokemon Battle Revolution, Pokemon Emerald, and a few more where different boost and reduction moves had different colours to distinguish them? It was a simple yet awesome aesthetic feature that I loved.
If you were around in the TPP era the legendary Helix got "rainbow boosts" quite frequently which is from moves like ancientpower, silver wind, and ominous wind which have a chance of raising ALL the users stats by 1 stage. Because each boost was represented by a different colour it literally made a rainbow of boosts.
Though the colours varied throughout the generations the typical colours for the boost colours were:
Attack : Red
Defense : Blue
Special Attack : Dark Red
Special Defense : Royal Blue
Speed : Green
Evasion : Purple
Accuracy : Grey
Lastly if one of these stats was reduced say from moves like 'growl' or 'screech' then the colour would go down instead of up just like it already does in PokéMMO.
This would be an awesome easy change if PokéMMO could add this and many fans would appreciate and from a coding perspective they would only need to change the colour of the boosts/reductions. Thanks for reading and supporting this post.