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The *Animation* section lets you manage settings related to :doc:`Animation </animation/index>`.
This includes how editors look and also some different tools properties.
.. figure:: /images/editors_preferences_section_animation.png
Blender Preferences Animation section.
These settings control things in the :doc:`Timeline </editors/timeline>`.
Allow Negative Frame
Playback and animations can occur during negative frame ranges.
Minimum Grid Spacing
The minimum number of pixels between grid lines.
Timecode Style
Format of timecodes displayed when not displaying timing in terms of frames.
The format uses '+' as a separator for sub-second frame numbers,
with left and right truncation of the timecode as necessary.
Zoom to Frame Type
Defines what time range (around the cursor) will be displayed
when the *View Frame* :kbd:`Numpad0` is performed.
Keep Range
The currently displayed time range is preserved.
The number of seconds specified in the *Zoom Seconds* field will be shown around the cursor.
The number of animation keyframes defined in the *Zoom Keyframes* field will be shown around the cursor.
These settings control :doc:`Keyframes </animation/keyframes/index>`
which are the building blocks for animations.
Visual Keying
When an object is using constraints, the object property value does not actually change.
*Visual Keying* will add keyframes to the object property,
with a value based on the visual transformation from the constraint.
Only Insert Needed
This will only insert keyframes if the value of the property is different.
Show Warning
Displays a warning at the top right of the *3D Viewport*, when moving objects, if *Auto Keyframe* is on.
Only Insert Available
This will only add keyframes to channels of F-Curves that already exist.
Enable in New Scenes
Enables *Auto Keyframe* by default for new scenes.
.. seealso::
Learn more about :ref:`Auto-Keyframing <bpy.types.ToolSettings.use_keyframe_insert_auto>`.
These settings control how :doc:`F-Curves </editors/graph_editor/fcurves/index>`
look and their default behavior.
Unselected Opacity
Controls the opacity of unselected :doc:`F-Curves </editors/graph_editor/fcurves/index>` against
the background of the Graph Editor.
Default Smoothing Mode
Controls the behavior of :ref:`automatic curve handles <editors-graph-fcurves-settings-handles>`
for newly created F-Curves.
Default Interpolation
Controls the default :ref:`Interpolation <editors-graph-fcurves-settings-interpolation>`
for newly created keyframes.
Default Handles
Controls the default :ref:`Handle <editors-graph-fcurves-settings-handles>` for newly created F-Curves.
Color for X, Y, or Z animation curves (location, scale or rotation)
is the same as the color for the X, Y, and Z axis.
Show Group Colors
Display groups and channels with colors matching their corresponding groups.
Only Selected Curve Keyframes
Only shows the keyframes markers on the selected curves.
Use High Quality Display
Display F-Curves using :term:`Anti-Aliasing` and other effects (disable for a better performance).