The Search In Place, starts the search dynamically as the letters are typed, if you use a low numbers of letters for shot the dynamic search, then your website might be downloading, constantly, information with low relevance from the server.
To replace the colors, you only must to open the codepeole_search_in_place.js file in the text editor of your preference and modify the list of colors.
Note: The above is a safe process, the plugin's data and settings won't be lost during the process and will appear again after installed the pro version.
Alternative Installation Method:
The upgrade instructions are exactly the same instructions mentioned above but be sure to make a backup copy of your current files if you have made custom modifications to the files or translations since the files will be overwritten.
After upgrading the plugin remember to clear your browser cache.
The free version must be deleted before installing the pro version.
If you are upgrading the pro version to a new version you should also remove the previously installed version.
This is a safe step, the plugin's data and settings won't be lost during the process.
Another alternative is to overwrite the plugin files through a FTP connection. This is also a safe step.