splashy (the bootup logo)
Can you change the bootup logo? Short answer: No, not easily
The X windows centered background image on a white background
noxbg boot option makes the X bootup screen blank.
Otherwise the background logo is retrieved from $HOMEPAGE/bg.png
Users see this as Webconverger loads the Web browser. So initially at bootup and between sessions. The amount of time this background is viewable depends on the speed of the computer. I.e. how long it takes to load the browser.
Example
So the default HOMEPAGE=http://portal.webconverger.com/ So view the current background.