Add a vignette effect (darkened edges) to frame. Args: frame: PIL Image strength: Vignette strength (0.0-1.0) Returns:

Append XML content as a child of a DOM element. Args: elem: defusedxml.minidom.Element to append to xml_cont

Apply screen shake effect to entire frame. Args: frame: PIL Image intensity: Shake intensity frame_index: Current fr

Apply simple mirror effect (faster than full kaleidoscope). Args: frame: Input frame mode: 'horizontal', 'vertical', 'quad'

Calculate squash and stretch scales for more dynamic animation. Args: base_scale: (width_scale, height_scale) base scales in

Add motion trail effect to moving object. Args: frames: List of frames with moving object trail_length: Number of previous f

Check for duplicate keys when loading JSON.

Composite one image on top of another. Args: base: Base image overlay: Image to overlay on top position: (x, y) posi

Create slow, calming breathing animation (in and out). Args: object_type: Type of object object_data: Object configuration

Create an explosion effect that expands and fades. Args: frame: PIL Image to draw on position: Explosion center radi

Fade from one solid color to another. Args: start_color: Starting RGB color end_color: Ending RGB color num_frames:

Create a vertical gradient background. Args: width: Frame width height: Frame height top_color: RGB color at top

Create a gradient of colors between two colors. Args: start_color: Starting RGB color end_color: Ending RGB color st

Create a bright flash effect at impact point. Args: frame: PIL Image to draw on position: Center of flash radius: Fl

Create "nope" reaction flip (like flipping table). Args: num_frames: Number of frames frame_width: Frame width frame

Create a smooth path through multiple points. Args: points: List of (x, y) waypoints num_frames: Total number of frames

Create quick emoji reaction morph (for emoji GIFs). Args: emoji_start: Starting emoji emoji_end: Ending emoji num_fr

Create expanding ring effects. Args: frame: PIL Image to draw on position: Center of rings radii: List of ring radii

Create speed lines for motion effect. Args: frame: PIL Image to draw on position: Center position direction: Angle i

Darken a color by a given amount. Args: color: RGB color tuple amount: Amount to darken (0.0-1.0) Returns: Dark

Draw a circle with drop shadow. Args: frame: PIL Image to draw on center: (x, y) center position radius: Circle radi

Draw a line on a frame. Args: frame: PIL Image to draw on start: (x, y) start position end: (x, y) end position

Draw a rectangle on a frame. Args: frame: PIL Image to draw on top_left: (x, y) top-left corner bottom_right: (x, y)

Draw a rectangle with rounded corners. Args: frame: PIL Image to draw on top_left: (x, y) top-left corner bottom_rig

Draw a 5-pointed star. Args: frame: PIL Image to draw on center: (x, y) center position size: Star size (outer radiu

Draw a simple stick figure. Args: frame: PIL Image to draw on position: (x, y) center position of head scale: Size m

Draw text in a semi-transparent box for guaranteed readability. Args: frame: PIL Image to draw on text: Text to draw

Draw text with glow effect for emphasis. Args: frame: PIL Image to draw on text: Text to draw position: (x, y) posit

Draw text with drop shadow for depth. Args: frame: PIL Image to draw on text: Text to draw position: (x, y) position

Back ease-in (slight overshoot backward before forward motion).

Back ease-in-out (overshoot at both ends).

Back ease-out (overshoot forward then settle back).

Cubic ease-in (slow start).

Elastic ease-in (spring effect).

Bounce ease-in-out.

Cubic ease-in-out.

Elastic ease-in-out.

Quadratic ease-in-out (slow start and end).

Quadratic ease-in (slow start, accelerating).

Cubic ease-out (fast start).

Elastic ease-out (spring effect).

Emit confetti particles (colorful, falling). Args: x, y: Emission position count: Number of confetti pieces

Emit sparkle particles (twinkling stars). Args: x, y: Emission position count: Number of sparkles

Get the complementary (opposite) color on the color wheel. Args: color: RGB color tuple Returns: Complementary RGB colo

Get a limited color palette optimized for emoji GIFs (<64KB). Args: name: Palette name (simple, vibrant_emoji) Returns:

Get a color for impact/emphasis effects. Args: effect_type: Type of effect (flash, explosion, electricity, etc.) Returns:

Extract text inventory and return as JSON-serializable dictionaries. This is a convenience wrapper around extract_text_inventory that returns

Find the largest font size that fits within given dimensions. Args: text: Text to size max_width: Maximum width in pixels

Get number of active particles.

Get the best text color (black or white) for a given background. Uses luminance calculation to ensure readability. Args: bg_col

Check if shape has any issues (overflow, overlap, or warnings).

Insert XML content after a DOM element. Args: elem: defusedxml.minidom.Element to insert after xml_content:

Insert XML content before a DOM element. Args: elem: defusedxml.minidom.Element to insert before xml_content

Check if element is inside a w:del element.

Quick check if GIF is ready for Slack. Args: gif_path: Path to GIF file is_emoji: True for emoji GIF, False for message GIF

Lighten a color by a given amount. Args: color: RGB color tuple amount: Amount to lighten (0.0-1.0) Returns: Li

Linear interpolation (no easing).

Calculate paragraphs from the shape's text frame.

Replace a DOM element with new XML content. Args: elem: defusedxml.minidom.Element to replace new_content: S

Replace node with automatic attribute injection.

Add a reply to an existing comment. Args: parent_comment_id: The w:id of the parent comment to reply to text

Reject a deletion by re-inserting the deleted content. Creates w:ins elements after each w:del, copying deleted content and convertin

Reject an insertion by wrapping its content in a deletion. Wraps all runs inside w:ins in w:del, converting w:t to w:delText. Can pro

Save the edited XML back to the file. Serializes the DOM tree and writes it back to the original file path, preserving the o

Scale font size proportionally to frame dimensions. Useful for maintaining relative text size across different GIF dimensions. Args:

Mark a w:r or w:p element as deleted with tracked changes (in-place DOM manipulation). For w:r: wraps in <w:del>, converts <w:t> to <w:delTex

Transform paragraph XML to add tracked change wrapping for insertion. Wraps runs in <w:ins> and adds <w:ins/> to w:rPr in w:pPr for numbered

Test that default font size is used when not specified

Test that boxes on different pages don't count as intersecting

Test that boxes touching at edges don't count as intersecting

Test that adequate entry box height passes

Test that entry box height is checked against font size

Test intersection between bounding boxes of different fields

Test intersection between label and entry of the same field

Test that error messages are limited to prevent excessive output

Test that missing entry_text doesn't cause height check

Test case with no bounding box intersections

Convert to dictionary for JSON serialization, excluding None values.

Main validation method that returns True if valid, False otherwise.

Run all validation checks and return True if all pass.