Attached are all the manila_Core manila files. You can use
CFCGui @ xda and export the image files to pngs, and delete the images you are not interested in. Then you should only have the tab icons you want to edit, and after editing them you can import from png back into manila files. Then just see which _Manila files were updated.
Edit: This is not all the _Manila files, just the ones from the 'Manila_Core' group when cooking. This should have most of what you need. Let me know if there are some of the icons that are not there, and I can looking around for them individually, but most should be there.