You can now create a custom style sheet in order to customize the UI of Softaculous Enduser Panel (For Eg. Changing the background color, text color, etc).
Note : This has been added in Softaculous 4.7.9
Steps for the same are as follows:
1) Create a file named custom.css containing the CSS code for various elements present on Softaculous Enduser Panel which you would like to modify.
2) Place this file at /path/to/your/softaculous/enduser/themes/default/custom.css
3) Thats It!! You may now visit your Softaculous Panel and view the customization done by you.