diff --git a/src/elektra/redshift.ini b/src/elektra/redshift.ini
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+; Elektra specification file for redshift@490ba2aae9cfee097a88b6e2be98aeb1ce990050 (= redshift v1.12 + some small commits)
+;
+; A specification file describes which configuration settings an application supports, their defaults and their associated CLI options. It also "(...) defines how the configuration settings should be validated" (source: https://www.libelektra.org/tutorials/validate-configuration)
+; For details see: https://www.libelektra.org/tutorials/writing-a-specification-for-your-configuration)
+
+; Redshift uses no environment variables.
+
+[]
+mountpoint = redshift.ecf
+
+[temp/day]
+type = unsigned_short
+description = The color temperature the screen should have during daytime.
+default = 6500
+example = 6500
+opt/long = temp-day
+opt/arg = required
+
+[temp/night]
+type = unsigned_short
+description = The color temperature the screen should have during nighttime.
+default = 4500
+example = 4500
+opt/long = temp-night
+opt/arg = required
+
+[fade]
+type = boolean
+description = Whether transitions between color temperatures (e.g. from daytime to nighttime) should happen fast or slow.
+default = 1
+example = 0
+opt = f
+opt/long = fade
+opt/arg = none
+
+[brightness]
+type = float
+description = The screen brightness.
+default = 1.0
+example = 0.8
+check/type = float
+check/range = 0-1
+opt = b
+opt/long = brightness
+opt/arg = required
+
+[brightness/day]
+type = float
+description = The screen brightness during daytime. If both day and night brightness are set, these will overrule the value of brightness.
+default = 1.0
+example = 0.8
+check/type = float
+check/range = 0-1
+opt/long = brightness-day
+opt/arg = required
+
+[brightness/night]
+type = float
+description = The screen brightness during nighttime. If both day and night brightness are set, these will overrule the value of brightness.
+default = 1.0
+example = 0.8
+check/type = float
+check/range = 0-1
+opt/long = brightness-night
+opt/arg = required
+
+[gamma]
+type = string
+description = The screen gamma. Supported formats: 1. One value, that will be used for red, green and blue (e.g. 0.9). 2. Three colon-separated values for red, green and blue respectively (e.g. 0.9:0.9:0.9).
+default = 1.0:1.0:1.0
+example = 0.9
+; Regex ensures format "float" or "float:float:float". Adapted from https://www.regular-expressions.info/floatingpoint.html
+check/validation = ^([0-9]*[\.,]?[0-9]+)(:([0-9]*[\.,]?[0-9]+):([0-9]*[\.,]?[0-9]+))?$
+opt = g
+opt/long = gamma
+opt/arg = required
+
+[gamma/day]
+type = string
+description = The screen gamma during daytime. Supported formats: 1. One value, that will be used for red, green and blue (e.g. 0.9). 2. Three colon-separated values for red, green and blue respectively (e.g. 0.9:0.9:0.9).
+default = 1.0:1.0:1.0
+example = 0.9
+; Regex ensures format "float" or "float:float:float". Adapted from https://www.regular-expressions.info/floatingpoint.html
+check/validation = ^([0-9]*[\.,]?[0-9]+)(:([0-9]*[\.,]?[0-9]+):([0-9]*[\.,]?[0-9]+))?$
+opt/long = gamma-day
+opt/arg = required
+
+[gamma/night]
+type = string
+description = The screen gamma during nighttime. Supported formats: 1. One value, that will be used for red, green and blue (e.g. 0.9). 2. Three colon-separated values for red, green and blue respectively (e.g. 0.9:0.9:0.9).
+default = 1.0:1.0:1.0
+example = 0.9
+; Regex ensures format "float" or "float:float:float". Adapted from https://www.regular-expressions.info/floatingpoint.html
+check/validation = ^([0-9]*[\.,]?[0-9]+)(:([0-9]*[\.,]?[0-9]+):([0-9]*[\.,]?[0-9]+))?$
+opt/long = gamma-night
+opt/arg = required
+
+[adjustment/method]
+type = enum
+check/enum = #6
+check/enum/#0 = drm
+check/enum/#1 = dummy
+check/enum/#2 = quartz
+check/enum/#3 = randr
+check/enum/#4 = vidmode
+check/enum/#5 = w32gdi
+check/enum/#6 = auto
+description = The method used to adjust screen color temperature. By default, one of the supported methods on the current OS will be chosen automatically. For details see section "Alternative Features" in file DESIGN in root directory.
+default = auto
+example = randr
+; default = w32gdi - For Windows the default is the only supported method 'w32gdi'
+; default = randr - For Linux the default is 'randr'
+; default = quartz - For macOS the default is 'quartz'
+opt = m
+opt/long = method
+opt/arg = required
+
+[provider]
+type = enum
+check/enum = #1
+check/enum/#0 = time
+check/enum/#1 = location
+description = The provider used to decide at what times of day redshift should be enabled/disabled. Currently two options are supported: 1. location - determines the user's location and enable/disable redshift depending on the solar elevation. 2. time: Ignore user location and enable redshift if time is between dusk and dawn.
+default = location
+example = time
+opt/long = provider
+opt/arg = required
+
+[provider/time/dawn]
+type = string
+check/date = ISO8601
+check/date/format = timeofday
+description = Instead of using the solar elevation at the user's location, the time intervals of dawn and dusk can be specified manually (source: https://github.com/jonls/redshift/wiki/Configuration-file#custom-dawndusk-intervals).
+default = 05:00
+example = 06:00
+opt/long = time-dawn
+opt/arg = required
+
+[provider/time/dusk]
+type = string
+check/date = ISO8601
+check/date/format = timeofday
+description = Instead of using the solar elevation at the user's location, the time intervals of dawn and dusk can be specified manually (source: https://github.com/jonls/redshift/wiki/Configuration-file#custom-dawndusk-intervals).
+default = 19:00
+example = 20:00
+opt/long = time-dusk
+opt/arg = required
+
+[provider/location]
+type = string
+check/enum = #3
+check/enum/#0 = corelocation
+check/enum/#1 = geoclue2
+check/enum/#2 = manual
+check/enum/#3 = auto
+description = The location provider to be used. By default, one of the supported location providers on the current OS will be chosen automatically. The provider is used to establish whether it is currently daytime or nighttime.
+default = auto
+example = geoclue2
+opt/long = location-provider
+opt/arg = required
+
+[provider/location/elevation/high]
+type = float
+description = By default, Redshift will use the current elevation of the sun to determine whether it is daytime, night or in transition (dawn/dusk). When the sun is above the degrees specified with the elevation-high key it is considered daytime and below the elevation-low key it is considered night (source: https://github.com/jonls/redshift/wiki/Configuration-file#solar-elevation-thresholds). Affects all location providers.
+default = 3.0
+example = 3.5
+opt/long = elevation-high
+opt/arg = required
+
+[provider/location/elevation/low]
+type = float
+description = By default, Redshift will use the current elevation of the sun to determine whether it is daytime, night or in transition (dawn/dusk). When the sun is above the degrees specified with the elevation-high key it is considered daytime and below the elevation-low key it is considered night (source: https://github.com/jonls/redshift/wiki/Configuration-file#solar-elevation-thresholds). Affects all location providers.
+default = -6.0
+example = -5.0
+opt/long = elevation-low
+opt/arg = required
+
+[provider/location/manual/lat]
+type = float
+description = The location latitude. Only applies to location provider "manual".
+check/type = float
+check/range = -90.0-90.0
+; Latitude of berlin:
+example = 52.520008
+; No default is provided, so that users are made aware they need to set their own location. A default would irritate users with an actual location that is not equal to the default.
+require =
+opt/long = lat
+opt/arg = required
+
+[provider/location/manual/lon]
+type = float
+description = The location longitude. Only applies to location provider "manual".
+check/type = float
+check/range = -180.0-180.0
+; Longitude of berlin:
+example = 13.404954
+; No default is provided, so that users are made aware they need to set their own location. A default would irritate users with an actual location that is not equal to the default.
+require =
+opt/long = lon
+opt/arg = required
+
+; Note: other location providers have no config parameters/cli arguments
+
+; BEGIN Settings used by randr and drm
+;=======================================================
+[adjustment/crtc]
+type = unsigned_short
+description = CRTC to apply adjustments to.
+default = 0
+example = 1
+opt/long = crtc
+opt/arg = required
+;=======================================================
+; END Settings used by randr and drm
+
+; BEGIN Settings used by randr and vidmode
+;=======================================================
+[adjustment/screen]
+type = unsigned_short
+description = X screen to apply adjustments to.
+default = 0
+example = 1
+opt/long = screen
+opt/arg = required
+;=======================================================
+; END Settings used by randr and vidmode
+
+; BEGIN Settings used by drm
+;=======================================================
+[adjustment/drm/card]
+type = unsigned_short
+description = Graphics card to apply adjustments to.
+default = 0
+example = 1
+opt/long = drm-card
+opt/arg = required
+;=======================================================
+; END Settings used by drm
+
+; Note: adjustment methods dummy, quartz and w32gdi have no config parameters/cli arguments or none that have an effect.