Keyblade heart connection???

[Zeffphyr]

If the 'default' Keychains are formed of memories, then the appearances of the Keyblades, most notably Mickey's, would be more affected if they related directly with 'elements'. Mickey's Keychain and Keyblade would likely appear much darker or evil than it currently does, being a shiny silver and gold. That's why I'm pretty sure that the 'default' Keychains are formed of the memories and experiences relating directly and only to the wielder.

Well, I think the explanation for the appearance of Mickey´s keyblade is that
Darkness is the ´reverse´ or opposite of light. If you look, the KK and Mickey´s
keyblade have the same colors but in opposite places and the little blue ring
on the KK between the blade and the handle is red on Mickey´s. (the opposite color of blue)

 

[Pratiko]

Well, I think the explanation for the appearance of Mickey´s keyblade is that
Darkness is the ´reverse´ or opposite of light. If you look, the KK and Mickey´s
keyblade have the same colors but in opposite places and the little blue ring
on the KK between the blade and the handle is red on Mickey´s. (the opposite color of blue)

Not just that. Mickey's Keyblade is called "Inverse Kingdom Key".

 

[Crossroads]

I can't wait until this whole keyblade business gets cleared up.

 

[Ophan]

Not just that. Mickey's Keyblade is called "Inverse Kingdom Key".

well of course it is. I thinks it's safe to believe that the
Inverse and KK were made specifically to shut the door of
KH, seeing as they were settled upon the light and dark realm.
They were obviously placed in their positions for the very
reason of closing the Door to Darkness (and KH).