chevrons at the beginning of lines in sixel graphics

[steven-omaha]

When printing any sixel image, I'm seeing chevrons at the beginning of the line. I don't know why they are there or how to get rid of them.

Original png: https://github.com/saitoha/libsixel/blob/master/images/snake.png
Original sixel: https://raw.githubusercontent.com/saitoha/libsixel/master/images/snake.six
My output:

System

OS: Arch Linux
Version: alacritty 0.11.0-dev (32fa60c6)
Linux/BSD: Xorg, i3-gaps, picom-ibhagwan-git

Logs

Font/Terminal size:

Created log file at "/tmp/Alacritty-56202.log"
[0.000099603s] [INFO ] [alacritty] Welcome to Alacritty
[0.000204977s] [INFO ] [alacritty] Version 0.11.0-dev (32fa60c6)
[0.000212772s] [INFO ] [alacritty] Running on X11
[0.001076225s] [INFO ] [alacritty] Configuration files loaded from:
                                     "/home/timeshifter/.config/alacritty/alacritty.yml"
[0.002024590s] [DEBUG] [alacritty] Loading "SauceCodePro Nerd Font" font
[0.009558652s] [DEBUG] [crossfont] Loaded Face Face { ft_face: Font Face: Regular, load_flags: TARGET_LIGHT, render_mode: "Normal", lcd_filter: 1 }
[0.011726873s] [DEBUG] [crossfont] Loaded Face Face { ft_face: Font Face: Bold, load_flags: TARGET_LIGHT, render_mode: "Normal", lcd_filter: 1 }
[0.013887462s] [DEBUG] [crossfont] Loaded Face Face { ft_face: Font Face: Italic, load_flags: TARGET_LIGHT, render_mode: "Normal", lcd_filter: 1 }
[0.016060684s] [DEBUG] [crossfont] Loaded Face Face { ft_face: Font Face: Bold Italic, load_flags: TARGET_LIGHT, render_mode: "Normal", lcd_filter: 1 }
[0.017641930s] [DEBUG] [alacritty] Estimated scaling factor: 1.25
[0.017750149s] [DEBUG] [alacritty] Estimated window size: None
[0.017753619s] [DEBUG] [alacritty] Estimated cell size: 10 x 23
[0.131764393s] [INFO ] [alacritty] Display scale factor: 1.25
[0.131779454s] [DEBUG] [alacritty] Filling glyph cache with common glyphs
[0.135230388s] [INFO ] [alacritty] Cell size: 10 x 23
[0.135239576s] [INFO ] [alacritty] Padding: 0 x 0
[0.135242555s] [INFO ] [alacritty] Width: 800, Height: 600
[0.137750703s] [INFO ] [alacritty] PTY dimensions: 26 x 80
[0.138954951s] [INFO ] [alacritty] Initialisation complete
[0.224812003s] [DEBUG] [alacritty_terminal] New num_cols is 125 and num_lines is 19
[0.238692066s] [INFO ] [alacritty] Padding: 0 x 0
[0.238706865s] [INFO ] [alacritty] Width: 1257, Height: 455
[0.242445613s] [DEBUG] [crossfont] Loaded Face Face { ft_face: Font Face: Book, load_flags: TARGET_LIGHT, render_mode: "Normal", lcd_filter: 1 }