User Guide

Overview

In order to use ThemeTweaker, you must set up your desired commands. Commands can be for the command palette, keymaps, menu etc. ThemeTweaker comes with an example keymap file to show how commands are constructed.

The default steps, hues, or intensities (depending on the command), are defined in the settings file. These can be changed if desired.

When tweaking a scheme, the scheme file (plus overrides in Sublime Text builds 3150+) will be consolidated and copied into User/ThemeTweaker with the scheme name and the prefix tweak_. In Sublime Text 3150+, scheme files will be of the type .sublime-color-scheme, while earlier builds will use the file type of .tmTheme.

Filter Commands

Brightness

theme_tweaker_brightness

Adjust the brightness of theme.

Parameters	Type	Description
direction	string	Accepts a string that is either + or - to control whether to go brighter or darker respectively.
step	float	Controls the brightness magnitude for each step. It is in relation to the center 1.0. So a value of 0.01 would shift it 1.01.
context	string	You can limit the filter to the background or foreground by setting the argument to either bg or fg respectively.
theme	string	Theme to adjust. If none, it will use the current set theme.

Contrast

theme_tweaker_contrast

Adjust the contrast of theme.

Parameters	Type	Description
direction	string	Accepts a string that is either + or - to control whether to go brighter or darker respectively.
step	float	Controls the contrast magnitude for each step. It is in relation to the center 1.0. So a value of 0.01 would shift it 1.01.
context	string	You can limit the filter to the background or foreground by setting the argument to either bg or fg respectively.
theme	string	Theme to adjust. If none, it will use the current set theme.

Saturation

theme_tweaker_saturation

Adjust the brightness of theme.

Parameters	Type	Description
direction	string	Accepts a string that is either + or - to control whether to go brighter or darker respectively.
step	float	Controls the brightness magnitude for each step. It is in relation to the center 1.0. So a value of 0.01 would shift it 1.01.
context	string	You can limit the filter to the background or foreground by setting the argument to either bg or fg respectively.
theme	string	Theme to adjust. If none, it will use the current set theme.

Hue

theme_tweaker_hue

Shift the hue of colors in the theme.

Parameters	Type	Description
direction	string	Accepts a string that is either + or - to control whether to go brighter or darker respectively.
step	integer	Accepts an integer which represents a degree between 0 and 360 to shift the hue.
context	string	You can limit the filter to the background or foreground by setting the argument to either bg or fg respectively.
theme	string	Theme to adjust. If none, it will use the current set theme.

Colorize

theme_tweaker_colorize

Applies the given hue to all colors in the theme.

Parameters	Type	Description
hue	integer	Accepts a hue value that will be applied to all colors.
context	string	You can limit the filter to the background or foreground by setting the argument to either bg or fg respectively.
theme	string	Theme to adjust. If none, it will use the current set theme.

Invert

theme_tweaker_invert

Command will invert all colors of the theme.

Parameters	Type	Description
context	string	You can limit the filter to the background or foreground by setting the argument to either bg or fg respectively.
theme	string	Theme to adjust. If none, it will use the current set theme.

Sepia

theme_tweaker_sepia

Applies a sepia filer to the theme colors.

Parameters	Type	Description
context	string	You can limit the filter to the background or foreground by setting the argument to either bg or fg respectively.
theme	string	Theme to adjust. If none, it will use the current set theme.

Grayscale

theme_tweaker_grayscale

Applies a grayscale filter to the theme colors.

Parameters | Type   | Description
---------- | ------ | -----------
`context`  | string | You can limit the filter to the background or foreground by setting the argument to either `bg` or `fg` respectively.
`theme`    | string | Theme to adjust.  If none, it will use the current set theme.

Glow

theme_tweaker_glow

Apply a glow filter to foreground colors.

Parameters	Type	Description
intensity	float	Accepts a floating point glow intensity to determine the strength of the glow. Glow should be between 0.0 and 1.0.
theme	string	Theme to adjust. If none, it will use the current set theme.

Custom Filter

theme_tweaker_custom

A command that allows multiple filters to be chained together. It takes a string with special syntax to apply filters. All filters that are available under Filter Commands are configurable. All operations are defined by a single string.

Available Filters:

• grayscale
• sepia
• invert
• brightness(float)
• saturation(float)
• contrast(float)
• hue(signed integer)
• colorize(integer)
• glow(positive float)

To apply a filter to just the foreground or background, simply add @fg or @bg to the filter in question.

Example

{
    "keys": ["up"],
    "command": "theme_tweaker_custom",
    "context": [
        {"key": "theme_tweaker"}
    ],
    "args": {
        "filters": "grayscale@fg;sepia;colorize(0);hue(-30);brightness(1.050000)@bg;saturation(0.900000);brightness(0.950000)"
    }
},

Special Commands

Undo

theme_tweaker_undo

Undo last applied filter.

Redo

theme_tweaker_redo

Re-apply last reverted filter.

Clear

theme_tweaker_clear

Clears all applied filters.

Toggle Theme Tweaker Mode

This command is available in the command palette as Theme Tweaker: Toggle Tweak Mode.

toggle_theme_tweaker_mode

Toggles the internal theme_tweaker mode flag that can be used as a context for when tweak commands are active. See Constructing Commands for more info.

Constructing Commands

Whether a keymap, command palette, or menu command is desired, the two theme tweaker related required arguments are command which is the name of the commands and args which is a dictionary of the parameters.

{
    "keys": ["up"],
    "command": "theme_tweaker_brightness",
    "args": {
        "direction": "+"
    }
},

Theme tweaker can check for the theme_tweaker context to control whether a command is active or not. The theme_tweaker context is toggled with the Toggle Theme Tweaker Mode command.

{
    "keys": ["up"],
    "command": "theme_tweaker_brightness",
    "context": [
        {"key": "theme_tweaker"}
    ],
    "args": {
        "direction": "+"
    }
},

Settings

The following settings are used to control default values for the provided commands.

Brightness Step

Controls the default brightness step. Must be a positive value between 0.0 and 1.0.

    // Default brightness steps (+/- from 1.0) (range: 0.0 - 1.0)
    // Can be overridden in the
    // ThemeTweakerBrightnessCommand command's argument "step"
    "brightness_step": 0.01,

Contrast Step

Controls the default contrast step. Must be a positive value between 0.0 and 1.0.

    // Default contrast steps (+/- from 1.0) (range: 0.0 - 1.0)
    // Can be overridden in the
    // ThemeTweakerContrastCommand command's argument "step"
    "contrast_step": 0.01,

Saturation Step

Controls the default saturation step. Must be a positive value between 0.0 and 1.0.

    // Staturation steps (+/- from 1.0) (range: 0.0 - 1.0)
    // Can be overridden in the
    // ThemeTweakerSaturationCommand command's argument "step"
    "saturation_step": 0.01

Hue Step

Default hue step. Must be an integer from 0 to 360.

    // Hue step in degrees (range 0-360)
    // Can be overridden in the
    // ThemeTweakerHueCommand command's argument "step"
    "hue_step": 10,

Colorize Hue

The default hue for colorization.

    // Default colorize default hue (0=Redish)
    // Can be overridden in the
    // ThemeTweakerColorizeCommand command's argument "hue"
    "colorize_hue": 0,

Glow Intensity

The default for glow intensity. Must be a value from 0.0 to 1.0.

    // Default glow intensity (range: 0.0 - 1.0)
    // Can be overridden in the
    // ThemeTweakerGlowCommand command's argument "intensity"
    "glow_intensity": 0.1,