User Files
Backgrounds, Images and Themes
You can add your own theme backgrounds, icons, clockfaces and graphics resolutions to Grub2Win for use on the boot menu screen.
Here are the guidelines for user files:
Backgrounds
To add your own background image files, click the image on the theme customization screen.
Background images files must be in .jpg format and no larger than 4 MB.
The file name must be alphanumeric with no embedded spaces. Names should be 40 characters or less in length.
Example spaceship123.jpg
will appear on the background selection screen as spaceship123
Icons
Place icon image files in the C:\grub2\userfiles\user.icons directory.
Icon images must be in .png format. The image size should be approximately 128 x 128 pixels.
The file name must be alphanumeric with no embedded spaces. Names should be 12 characters or less in length.
Example mylinux.png
will appear on the icon selection screen as mylinux
Clockfaces
Place clockface image files in the C:\grub2\userfiles\user.clockfaces directory.
Clockface images must be in .png format. The image size should be approximately 75 x 75 pixels.
The file name must be alphanumeric with no embedded spaces. Names should be 20 characters or less in length.
Example myclock.png
will appear on the clockface selection pulldown as myclock
Themes
Caution! User themes are complex and should only be created by advanced users.
It is possible for invalid user themes to cause problems during the boot process.
Place your custom.config.* file in the C:\grub2\userfiles\user.themes directory.
It will override the standard theme file generated by Grub2Win.
Your user theme must conform to the naming convention that follows.
The four acceptable file names, which include the CPU bits and the firmware mode are:
custom.config.32.bios.txt
custom.config.32.efi.txt
custom.config.64.bios.txt
custom.config.64.efi.txt
You should only customize the theme file that applies to your system.
Graphics Resolutions
You can add up to five additional resolution selections by creating file C:\grub2\userfiles\gfxmode.cfg.
This must be a file containing resolutions in the GNU Grub gfxmode format separated by commas.
It is the user's responsibility to ensure that any additional resolutions are compatible with their hardware.
Each line in the file will create an additional resolution selection.
Example:
1024x768,800x600,1600x1200
Note: The ** Auto ** graphics resolution setting has been stabilized. It is now permanently set to:
“1600x1200,1280x1024,1152x864,1024x768"
Misc.Files
Can be used to store any other files the user wants to persist when Grub2Win is upgraded to a new release or run multiple times.
Note: The userfiles directories will be preserved unchanged when you run Grub2Win multiple times.
They will also be preserved when you upgrade Grub2Win to a new version.
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