user: Show practical ways to work with ThemeNLAEditor(bpy_struct) in a Blender add-on or script – include code.

assistant: # ThemeNLAEditor(bpy_struct)

base class — [`bpy_struct`](bpy.types.bpy_struct.html#bpy.types.bpy_struct "bpy.types.bpy_struct")

*class* bpy.types.ThemeNLAEditor(*bpy_struct*)
:   Theme settings for the NLA Editor

    active_action
    :   Animation data-block has active action

        Type:
        :   float array of 4 items in [0, 1], default (0.0, 0.0, 0.0, 0.0)

    active_action_unset
    :   Animation data-block does not have active action

        Type:
        :   float array of 4 items in [0, 1], default (0.0, 0.0, 0.0, 0.0)

    grid
    :   Type:
        :   [`mathutils.Color`](mathutils.html#mathutils.Color "mathutils.Color") of 3 items in [0, 1], default (0.0, 0.0, 0.0)

    keyframe_border
    :   Color of keyframe border

        Type:
        :   float array of 4 items in [0, 1], default (0.0, 0.0, 0.0, 0.0)

    keyframe_border_selected
    :   Color of selected keyframe border

        Type:
        :   float array of 4 items in [0, 1], default (0.0, 0.0, 0.0, 0.0)

    meta_strips
    :   Unselected Meta Strip (for grouping related strips)

        Type:
        :   [`mathutils.Color`](mathutils.html#mathutils.Color "mathutils.Color") of 3 items in [0, 1], default (0.0, 0.0, 0.0)

    meta_strips_selected
    :   Selected Meta Strip (for grouping related strips)

        Type:
        :   [`mathutils.Color`](mathutils.html#mathutils.Color "mathutils.Color") of 3 items in [0, 1], default (0.0, 0.0, 0.0)

    sound_strips
    :   Unselected Sound Strip (for timing speaker sounds)

        Type:
        :   [`mathutils.Color`](mathutils.html#mathutils.Color "mathutils.Color") of 3 items in [0, 1], default (0.0, 0.0, 0.0)

    sound_strips_selected
    :   Selected Sound Strip (for timing speaker sounds)

        Type:
        :   [`mathutils.Color`](mathutils.html#mathutils.Color "mathutils.Color") of 3 items in [0, 1], default (0.0, 0.0, 0.0)

    space
    :   Settings for space

        Type:
        :   [`ThemeSpaceGeneric`](bpy.types.ThemeSpaceGeneric.html#bpy.types.ThemeSpaceGeneric "bpy.types.ThemeSpaceGeneric"), (readonly, never None)

    strips
    :   Unselected Action-Clip Strip

        Type:
        :   [`mathutils.Color`](mathutils.html#mathutils.Color "mathutils.Color") of 3 items in [0, 1], default (0.0, 0.0, 0.0)

    strips_selected
    :   Selected Action-Clip Strip

        Type:
        :   [`mathutils.Color`](mathutils.html#mathutils.Color "mathutils.Color") of 3 items in [0, 1], default (0.0, 0.0, 0.0)

    transition_strips
    :   Unselected Transition Strip

        Type:
        :   [`mathutils.Color`](mathutils.html#mathutils.Color "mathutils.Color") of 3 items in [0, 1], default (0.0, 0.0, 0.0)

    transition_strips_selected
    :   Selected Transition Strip

        Type:
        :   [`mathutils.Color`](mathutils.html#mathutils.Color "mathutils.Color") of 3 items in [0, 1], default (0.0, 0.0, 0.0)

    tweak
    :   Color for strip/action being “tweaked” or edited

        Type:
        :   [`mathutils.Color`](mathutils.html#mathutils.Color "mathutils.Color") of 3 items in [0, 1], default (0.0, 0.0, 0.0)

    tweak_duplicate
    :   Warning/error indicator color for strips referencing the strip being tweaked

        Type:
        :   [`mathutils.Color`](mathutils.html#mathutils.Color "mathutils.Color") of 3 items in [0, 1], default (0.0, 0.0, 0.0)

    *classmethod* bl_rna_get_subclass(*id*, *default=None*, */*)
    :   Parameters:
        :   **id** (*str*) – The RNA type identifier.

        Returns:
        :   The RNA type or default when not found.

        Return type:
        :   [`bpy.types.Struct`](bpy.types.Struct.html#bpy.types.Struct "bpy.types.Struct") subclass

    *classmethod* bl_rna_get_subclass_py(*id*, *default=None*, */*)
    :   Parameters:
        :   **id** (*str*) – The RNA type identifier.

        Returns:
        :   The class or default when not found.

        Return type:
        :   type