eylles/pywal16

16 colors fork of pywal

This project is a 16 colors fork of pywal

Generate and change color-schemes on the fly.

Pywal is a tool that generates a color palette from the dominant colors in an image. It then applies the colors system-wide and on-the-fly in all of your favourite programs.

There are currently 5 supported color generation backends, each providing a different palette of colors from each image. You're bound to find an appealing color-scheme.

Pywal also supports predefined themes and has over 250 themes built-in. You can also create your own theme files to share with others.

The goal of Pywal was to be as out of the way as possible. It doesn't modify any of your existing configuration files. Instead it works around them and provides tools to integrate your system as you see fit.

Terminal emulators and TTYs have their color-schemes updated in real-time with no delay. With minimal configuration this functionality can be extended to almost anything running on your system.

More: [Installation] [Getting Started] [Customization] [Wiki] [Screenshots] [Extras]

pywal16's Issues

Is it possible to use it with wpgtk?

using it as backend of wpgtk?

Any way to get Material colors?

Like material color engine?

How to remove transparent background ?

Installation instructions wrong

How install pywal16 (not pywal?)

After updating it via AUR

󰘧 walset
[I] image: Using image wallhaven-x67oxo.png.
[I] colors: Generating a colorscheme.
[I] colors: Using wal backend.
Traceback (most recent call last):
  File "/usr/bin/wal", line 33, in <module>
    sys.exit(load_entry_point('pywal16==3.5.3', 'console_scripts', 'wal')())
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pywal/__main__.py", line 244, in main
    parse_args(parser)
  File "/usr/lib/python3.12/site-packages/pywal/__main__.py", line 184, in parse_args
    colors_plain = colors.get(image_file, args.l, args.cols16, args.backend,
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pywal/colors.py", line 213, in get
    colors = getattr(backend, "get")(img, light, cols16)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pywal/backends/wal.py", line 77, in get
    colors = gen_colors(img)
             ^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pywal/backends/wal.py", line 64, in gen_colors
    return [re.search("#.{6}", str(col)).group(0) for col in raw_colors[1:]]
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'group'

property export

while working on #6 i found some problems with the export submodule as adding new properties isn't as straightforward as it seems.

the attempted properties under util.py

    @property
    def red_dec(self):
        """Red value as decimal."""
        return "%s" % hex_to_rgb(self.hex_color)[0]

    @property
    def green_dec(self):
        """Green value as decimal."""
        return "%s" % hex_to_rgb(self.hex_color)[1]

    @property
    def blue_dec(self):
        """Blue value as decimal."""
        return "%s" % hex_to_rgb(self.hex_color)[2]

trying to use these on a template results in a pywal error:

 File "/home/ed/.local/lib/python3.10/site-packages/pywal/export.py", line 27, in template
    new_color = util.Color(colors[cname].hex_color)
AttributeError: 'str' object has no attribute 'hex_color'

this clearly shows that there is a problem in the template exporting code as it is necesary to to specify lenght of the format string "%3s" to make the colors export, the lenght of the string should not matter at all and the end result padding with spaces may not be desirable.

there clearly was a problem with that part of the code as evidenced by a2ddff3 , in order to continue the development of this fork the important functions such as the template function of the export submodule should be clear on what they do, for that reason i'm asking @AmitPr and @loiccoyle if they can chime in to help with the debugging the problem so that we can iron out these kinks.

KeyError: 'DESKTOP_SESSION'

I get this error when i test a wallpaper and wal cant generate the files with colors

(pywal16) [user@tux ~/pywal16]$ wal -n -i ~/Wallpapers/wallhaven-5gp7j8_1920x1080.png 
[I] image: Using image wallhaven-5gp7j8_1920x1080.png.
[I] theme: Set theme to _home_hellboy_Wallpapers_wallhaven-5gp7j8_1920x1080_png_9_dark_None_None_2774760_1.1.0.json.
[I] colors: Found cached colorscheme.
Traceback (most recent call last):
  File "/home/user/pywal16/bin/wal", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/home/user/pywal16/lib/python3.12/site-packages/pywal/__main__.py", line 244, in main
    parse_args(parser)
  File "/home/user/pywal16/lib/python3.12/site-packages/pywal/__main__.py", line 216, in parse_args
    sequences.send(colors_plain, to_send=not args.s, vte_fix=args.vte)
  File "/home/user/pywal16/lib/python3.12/site-packages/pywal/sequences.py", line 93, in send
    if os.environ["DESKTOP_SESSION"] == "plasma":
       ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
  File "<frozen os>", line 685, in __getitem__
KeyError: 'DESKTOP_SESSION'

Removing fcntl calls to get pywal16 to work on windows

pywal originally worked on Windows to generate color schemes.
It had to be run with wal -n, which skipped setting the wallpaper, but the colorscheme generation worked fine, and you were able to theme bash, vscode, your browser, etc.
pywal16 however does not seem to work because of the fcntl calls present in one function here.
fcntl is not available on Windows, so could it be replaced with something more portable or removed altogether?
Thanks.

Problem with colors[0]

Hello
In this image as you can see no matter how light your background looks like, this fork makes the colors[0] 'black'!
Is this intended? because the original one does a really good job at this. (a dark shade for colors[0])
The one in right is original pywal.

Bad interaction with BSPWM.

Using wal -i <path to images directory> restarts BSPWM and doesn't change the background

TypeError: 'usedforsecurity' is an invalid keyword argument for openssl_md5()

Getting the error from the title when running pywal.

Fixed by changing
the import from hashlib import md5 -> import hashlib

And line 202 in the util.py file to hashlib.new('md5', usedforsecurity=False)

Handling ttys not accepting sequences e.g when suspended by Flow Control

Currently whenever a terminal is in suspended mode (and maybe for some other reasons) and pywal tries to send the color sequences to it the save_file here:

pywal16/pywal/sequences.py

Line 92 in 095b169

util.save_file(sequences, dev)

it will get stuck trying to write indefinitelly, blocking the writing to the remaining ttys and program itself

I tried this PR Add --active-only flag to only run pywal on active ttys from dylanaraps repo. But unfortunately it didn't work for Kitty, which doesn't show up in who output for some reason and also doesn't handle the aforementioned suspend mode.

So I am wondering if there is a way to reliably detect whether a tty cannot receive input so it is skipped. Konsole links to this wiki page about Software Flow Control, could it be that there is a way to detect in which state a tty is? Or will it be okay putting a timeout to the write operation to abort when it gets stuck?

[Unsure]: Color generation for gif.

i tried wal with a gif and magick took full cpu for around 1 min.
I want to ask does it try to extract color from every frame?
if it is the case then it will be nice to have a flag that specifies which frame to use to generate the color if it is a gif.

Much darker background colors with pywal16 comapred to python-pywal arch package

I switched to your pywal fork and i noticed that background colors are almost pitch black compared to python-pywal i was using before

Is there any way to make pywal16 behave like python-pywal
(I used VSCode as a example but this apllies to anything that sues @backgroundColor including my waybar and rofi presets)

python-pywal package from arch repo

pywal16 installed with pipx

16 colors output only with --cols16 option

By default it seems that wal only extracts 8 colors from a wallpaper, with wal -i /path/to/image. Only when I use wal --cols16 -i /path/to/image, I get nice 16 colors. Is this expected behavior? If so, can it be mentioned in the "Getting started" page? Thank you!