Update configuration file for latest Qutebrowser version

nord-qutebrowser.py

@@ -439,3 +439,74 @@ c.colors.webpage.darkmode.algorithm = 'lightness-cielab'
 # `brightness-rgb`.
 # Type: Float
 c.colors.webpage.darkmode.contrast = 0.0
+
+# Render all web contents using a dark theme. Example configurations
+# from Chromium's `chrome://flags`:  - "With simple HSL/CIELAB/RGB-based
+# inversion": Set   `colors.webpage.darkmode.algorithm` accordingly.  -
+# "With selective image inversion": Set
+# `colors.webpage.darkmode.policy.images` to `smart`.  - "With selective
+# inversion of non-image elements": Set
+# `colors.webpage.darkmode.threshold.text` to 150 and
+# `colors.webpage.darkmode.threshold.background` to 205.  - "With
+# selective inversion of everything": Combines the two variants   above.
+# Type: Bool
+c.colors.webpage.darkmode.enabled = False
+
+# Render all colors as grayscale. This only has an effect when
+# `colors.webpage.darkmode.algorithm` is set to `lightness-hsl` or
+# `brightness-rgb`.
+# Type: Bool
+c.colors.webpage.darkmode.grayscale.all = False
+
+# Desaturation factor for images in dark mode. If set to 0, images are
+# left as-is. If set to 1, images are completely grayscale. Values
+# between 0 and 1 desaturate the colors accordingly.
+# Type: Float
+c.colors.webpage.darkmode.grayscale.images = 0.0
+
+# Which images to apply dark mode to. With QtWebEngine 5.15.0, this
+# setting can cause frequent renderer process crashes due to a
+# https://codereview.qt-project.org/c/qt/qtwebengine-
+# chromium/+/304211[bug in Qt].
+# Type: String
+# Valid values:
+#   - always: Apply dark mode filter to all images.
+#   - never: Never apply dark mode filter to any images.
+#   - smart: Apply dark mode based on image content. Not available with Qt 5.15.0.
+c.colors.webpage.darkmode.policy.images = 'smart'
+
+# Which pages to apply dark mode to. The underlying Chromium setting has
+# been removed in QtWebEngine 5.15.3, thus this setting is ignored
+# there. Instead, every element is now classified individually.
+# Type: String
+# Valid values:
+#   - always: Apply dark mode filter to all frames, regardless of content.
+#   - smart: Apply dark mode filter to frames based on background color.
+c.colors.webpage.darkmode.policy.page = 'smart'
+
+# Threshold for inverting background elements with dark mode. Background
+# elements with brightness above this threshold will be inverted, and
+# below it will be left as in the original, non-dark-mode page. Set to
+# 256 to never invert the color or to 0 to always invert it. Note: This
+# behavior is the opposite of `colors.webpage.darkmode.threshold.text`!
+# Type: Int
+c.colors.webpage.darkmode.threshold.background = 0
+
+# Threshold for inverting text with dark mode. Text colors with
+# brightness below this threshold will be inverted, and above it will be
+# left as in the original, non-dark-mode page. Set to 256 to always
+# invert text color or to 0 to never invert text color.
+# Type: Int
+c.colors.webpage.darkmode.threshold.text = 256
+
+# Value to use for `prefers-color-scheme:` for websites. The "light"
+# value is only available with QtWebEngine 5.15.2+. On older versions,
+# it is the same as "auto". The "auto" value is broken on QtWebEngine
+# 5.15.2 due to a Qt bug. There, it will fall back to "light"
+# unconditionally.
+# Type: String
+# Valid values:
+#   - auto: Use the system-wide color scheme setting.
+#   - light: Force a light theme.
+#   - dark: Force a dark theme.
+c.colors.webpage.preferred_color_scheme = 'auto'