[confluence] refresh Fanart_fallback_*

1)mixer board recolored confluence texture.

2) License: CC0 Public Domain / FAQ
   Free for commercial use / No attribution required
   http://pixabay.com/go/?t=%2Fservice%2Fterms%2F%23download_terms
[confluence] refresh Default* and unknown-user
[confluence] refresh Default HDD icons
[confluence] refresh/update folder icons
[confluence] add missing folder icons

To match 5684

* DefaultAddonAudioEncoder
* DefaultAddonHelper
* DefaultAddonInfoLibrary
* DefaultAddonLibrary
[confluence] refresh aspectratio flags.

same quality, smaller file size, and minor fixes.
[confluence] update color.xml to match textures more.
[confluence] update various focus textures

take #2
match the blue shade more and remove shine

as per @ronie comments.

thank you for showing what the differences were.

work continues to improve things.

d