I did this in past but dont remember the exact change.
but it would be anything from the below changes.
1) Image Files --> Logo
Path : /OA_HTML/cabo/images/swan/
Path : $OA_MEDIA/
2) System Profile --> Set Logo at Site Level
Name - Corporate Branding Image for Oracle Applications
Path - $OA_MEDIA/FNDlogo.gif
3) Updated two CSS Files
Name - $OA_HTML/cabo/styles/cache/swan-desktop-2_3_6_9-en-ie-windows.css --> Home links font changed to Black color (Color code #000000).
$OA_HTML/cabo/styles/OAFSlideoutMenu.css --> Favorites and Navigator on Home Page highlighted with Black color.
4) Edit Application Name --> Application Name was overlapping with Logo.
a) Function --> Rename "E-Business Suite" to "HOME"
Name - FWK_HOMEPAGE_BRAND - **Refer Screenshot
b) Sysadmin Setup --> Remove iSupport Application Name "Support and Self-Service"