Total Commander

Hi,

I wish I could add a color for specified folder in the list.
For example, there are 10 folders and 20 files in the list.
Recently I need to access folderA freqently, I want to change the yellow folder icon to red folder icon.
So that I can quickly find where the folder is.

You can only change the icon via properties (Alt+Enter), last tab. It's easier to change the color of the folder name, e.g. via a comment.
First you need to set up a custom color. You only need to do this once:
1. Chose Configuration - Options - Color
2. Click on "Define colors by file type"
3. Click on "Add"
4. Click on "Define..."
5. Open the "Plugins" tab
6. Open the combobox "Properties" and choose "Comment"
7. OP should be "contains"
8. Value can be whatever you want, e.g. high
9. Click "OK"
10. Enter a name, e.g. "High-ranked"
11. Click "OK"
12. Choose "High-ranked" from the list
13. Click OK
14. Choose a color
15. Click OK

Now you can press Ctrl+Z on a file or folder and enter the keyword you set in step 8.

Here is a similar approach including buttons to easily set the color and remove it again: https://ghisler.ch/board/viewtopic.php?p=409031#p409031