As far i can see there is no entry in the main xml for that screen
What
@Cypher_CG89 explained is right, that xml is a representation of the internal rco structure, and the tags under <ObjectTree> are like the construction blocks of XMB, everyone of them is like an small "display mode" that tells how the stuff is displayed on screen
But the screen used in XMB ---> [Settings] ---> [System Settings] ---> [About PlayStation3]... doesnt seems to be build this way because there is not a page for it under <ObjectTree>
Im not going to say im completly sure about this, because the only way to give proof that is not there is by explaining what does all the others (and there are a lot more, and some im not really sure what does)
There is a good way to organize the xml to read that "page" object names, in notepad++ in the tabs at top choose:
View ---> Collapse level ---> 4
And you will see the contents this way:
Scroll down to see all the other names... you will notice are ordered in the same way that are displayed on XMB (mostly, not completly)
So... this seems to be one of the cases where the .sprx is "overriding" the objects inside the rcoxml
The .sprx can remove, replace, or add stuff to the rcoxml
In this case it seems the .sprx is adding a page with that animation effect scrolling down (and the button controlls with the stick and x button to pause the scrolling)
Also, is clearlly composed by 3 blocks, as we was mentioning
First block - aligned to left (with a single line and the string msg_ps_rights + icons loaded from imagefont.bin)
Second block - aligned to center (with strings and icons loaded from the rco)
Third block - aligned to left (from PS3_OSS_Noitice.txt and without icons)
And the icon location of the first and second block are driven by the .sprx
Note the weirdness in how is displayed the icon for atrac
Code:
<Text name="msg_atrac1_right">"ATRAC" and</Text>
<Text name="msg_atrac2_right">are trademarks of Sony Corporation.</Text>
This 2 text lines belongs to the same sentence, but is divided in 2 to create a "gap" for the icon
What the .sprx is doing is to display the atrac icon after the "msg_atrac1_right"