Here is Chainfires manila editor. It is simple and straightforward, read his "manual" post. What I like most is that you can change the background color in the viewing pane so you can see those white graphics (doesn't affect actual image just makes it viewable!). It also "fixes" any headers and trims for themes.. compresses and/or decompresses graphics etc. Very cool... I did not install the compression piece on my phone yet becuase I wanted to be sure I could use the program.
http://forum.xda-developers.com/showthread.php?t=470798
I am telling you it took literally 5 mins to colorize my clock and the icons from another theme.. Used a recorded action in photoshop to automate the changes and imported back in it was ready to go. The only thing I'd advise is to create a copy folder FIRST and edit from there because I don't see a backup being created.
http://forum.xda-developers.com/showthread.php?t=470798
BTW That theme with Capone is perfect and you're right the blossom graphics match great!