* add background-color as fallback for gradients on docs site
This is both for old browser support, and for accessibility. Some
accessibility tools turn off gradients since they can make text hard to
read for those with visual impairment.
* change mobile header color for docs site
The mobile header was using a light-purple to dark-purple gradient, even
though every other gradient on the site is mid-purple to dark-purple.
This commit changes that both for consistency on the site, and because
light-purple causes an accessibility issue with the white text in the
header (even though the accessibility tools don't notice because of the
gradient).
* Update authors to "jrnl contributors" to comply with GPL3
* Include jrnl email address with contributors
* Include GPL notice in jrnl --version
* Apply consistent copyright and license to all Python files
* Add copyright and license to documentation
* Add copyright and license to docs theme
* Wiping poetry cache to try to resolve a test issue
* Testing with Python 3.9.0 in attempt to bypass GitHub Actions failure in 3.9.1
* make format
* Exclude Windows Python 3.9 build which is failing due to a GitHub Actions problem
* Modify testing to get around this 3.9 issue...
* Fix exclude
* remove old file that was only needed for gh-pages
* fix broken icons on docs home page
* add more contrast to twitter button hover state
* tweak non-accessible color to meet standard
* tweak non-accessible colors to meet standard
* add some attribtutes to docs template for accessbility
* fix colors to meet accessibility guidelines (4.5 contrast ratio for text)
* Fix last remaining pa11y error (no button on search form)
This fix required moving the mkdocs theme out of the docs directory.
It's no in the docs_theme directory, and the mkdocs config is updated
accordingly.
* Re-enable accessibility testing for docs sit
Also, move the pa11y script into the gh actions workflow
* clean up linting issues in css
* fix and standardize link colors across site
* fix twitter button opacity making text fail contrast requirements
* move buttons on docs site index nav, tweak font weights
* fix footer opacity, tweak spacing of the now more visible sections of the page
* change font sizes on index page to meet WCAG
* udpate font sizes site-wide for accessibility
* fix sidebar for accessibility (font sizes and color contrasts)
* restyle code blocks to have dark background, and meet accessibility requirements
* standardize (accessible) colors across docs site
