Thanks a lot :) Glad you enjoyed the game :) I have been thinking of that part with someone suggesting that seeds either:
1- erase the tile underneath it when it appears
2- protect you from damage when you take it, so regardless of the tile
The first solution is more consistent with the rules but the second give it more deep strategy but complicate the simplicity of the rules :)
Just edited the game and went with the simpler option which seeds erase the underlying color tiles :)