- feat: better handling of global backgrounds

- Fix sending Boolean to isWhite()

- Better error handling
- Fix modification of computed style

- Fix bad handling of style properties.

- Fixed detection of transparent background as white

- Fix wrong background color detection

- Fix bug causing color change always

- Refactor of known background variables. You may add new ones to the knownVarNames array.

- Better error handling

- Fix not changing global background color

- Support for HSLA color format added
- Changed colors are now a bit transparent

Better detection; Darker and less chromatic colors;

- Commented debug logs, uncomment for debugging purposes.

- Reversing zero-alpha-channel-background detection as it had unwanted effects on some web sites.

- Re-implemented alpha detection to detect invisible black backgrounds.

- Removed low alpha detection as it had unexpected results.

- Changing #content css selector to body.
- Detect low alpha values for background.

Handle no rules access: Inserting new style element.

Trying to use getComputedStyle for the document first.

Detecting HSL color values.
Detecting CSS variables.

• Detection of any bright color not just absolute white.
• Using appropriate log levels.

In this major release:

• Compacted code and made it more general.
• Automatically changes color periodically to prevent eye fatigue.

Deprecated CSSRule.type was removed.
@include directive was replaced by @match.
One of colors was changed to be a bit darker.