Canon EOS 6D Instruction Manual page 119

If a Picture Style has already been registered under [User Def. *],
changing the base Picture Style in step 4 will nullify the parameter
settings of the registered Picture Style.
If you execute [Clear all camera settings] (p.56), all the [User Def. *]
settings will revert to their defaults. Picture Style registered via EOS
Utility (provided software) will have only their modified parameters
reverted to their default settings.
To use the adjusted Picture Style, select the registered [User Def. *],
then shoot.
Regarding the procedure to register a Picture Style file to the camera,
refer to the EOS Utility Instruction Manual on the DVD-ROM (p.389).
5
Select a parameter.
Select a parameter such as
[Sharpness], then press <0>.
6
Set the parameter.
Press the <U> key to adjust the
parameter as desired, then press
<0>.
For details, see "Customizing a
Picture Style" on pages 115-117.
Press the <M> button to register
the modified Picture Style. The Picture
Style selection screen will then reappear.
The base Picture Style will be
indicated on the right of [User Def. *].
If the settings in a Picture Style
registered under [User Def. *] have
been modified from the base Picture
Style settings, the Picture Style's
name will be displayed in blue.
A Registering a Picture StyleN
119