Self Service (html/jsp) Pages turn to complete Dark Blue / Messed in R12

After Patching HRMS RUP7 & Upgrading JRE/JDK 7 w.r.t. OracleAS 10.1.2 found issue with login page which was showing in Dark Blue, futher other OAF Pages too were improper due to which difficulty in reading some of the text

For above issue, followed below Action Plan from Oracle Support and Issue is resolved,

1. cd $OA_HTML 

2. mv ./cabo/styles ./cabo/styles.bak 

3. unzip marlin_html.zip in $OA_HTML (version 84 from rup7) 

4. copy to $OA_HTML/cabo/styles the files from $OA_HTML/cabo/styles.bak like the following: 
bistyles.xss
custom.xss 
custom.xss.pre_R12
mainMenuTree.css
OAFSlideoutMenu.css
OAFSlideoutMenu_rtl.css
oa.xss

5. Shutdown all application services 

6. Take backup of all files in following directories from application tier . 

$OA_HTML/cabo/images/cache 
$OA_HTML/cabo/styles/cache 

7. Remove all files in above 2 directories 

8. Restart services. (Bounce the Apache + OACORE OC4J processes)

9. Clear the client side browser cache, java cache, restart the browser and test and check in multiple desktops

Useful Documentation:

Look And Feel Of Self Service Pages Are Messed After R12 Upgrade ( Doc ID 1556590.1) 

Self Service Pages turn to complete Dark Blue in Release 12 (ID 1054332.1)

How To Clear Caches (Apache/iAS, Cabo, Modplsql, Browser, Jinitiator, Java, Portal, WebADI) for E-Business Suite? (ID 742107.1)

- Manish