As of CCleaner 4.09.4471, when CCleaner is run and minimized to the system tray hovering over the system tray icon will produce a tooltip like the following:
CCleaner (Cleaning... 25%)
I would like a more descriptive tooltip which would display the current operation such as the following:
CCleaner (Cleaning... 25%) Google Chrome Internet Cache
^ 57 characters (including the carriage return and line feeds [\x0D\x0A])
Now there would be times when you would have crazy-long tooltips such as the following:
CCleaner (Cleaning... 25%) System Empty Recycle Bin X:\Some\Very\Very\Very\Very\Very\Very\Very\Very\Very\Very\Very\Long\Path\To\A\File.txt
That would be an eye sore to display so I'm thinking you could truncate all that unnecessary path information to just display the drive and file and display it as the following:
CCleaner (Cleaning... 25%) System Empty Recycle Bin X:\...\File.txt
The reason for more descriptive tooltips comes from times when I'll see CCleaner's system tray tooltip display that it's "Cleaning... 40%" for quite a while (and I wont know why). After double-clicking the system tray icon to bring up the GUI, I'll see that it's securely wiping some large file. By having more descriptive tooltips, I can just hover my mouse over the system tray icon and figure out what file CCleaner is currently cleaning.