Issue number: N/A
---------
## What is the current behavior?
Currently, every Sass variable in Ionic has the `!default` flag added to
the end.
From the [Sass variables
documentation](https://sass-lang.com/documentation/variables/):
> Normally when you assign a value to a variable, if that variable
already had a value, its old value is overwritten. But if you’re writing
a Sass library, you might want to allow your users to configure your
library’s variables before you use them to generate CSS.
>
> To make this possible, Sass provides the `!default` flag. This assigns
a value to a variable only if that variable isn’t defined or its value
is [null](https://sass-lang.com/documentation/values/null). Otherwise,
the existing value will be used.
In past versions of Ionic Framework, developers wrote Sass variables to
rebuild Ionic Framework using their own values. In the latest versions
of Ionic Framework, this is not possible.
## What is the new behavior?
Removes the `!default` flag from all Sass variables.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
-------
Co-authored-by: brandyscarney <brandyscarney@users.noreply.github.com>
⚠️ This is a combination of previously approved PRs with the
exception of
fe9dca513c.
This change was made as a result of
https://github.com/ionic-team/ionic-framework-design-documents/pull/248.
Issue number: Internal
---------
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issue. -->
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etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
Users do not have a way of increasing the contrast in Ionic apps. This
is valuable for people with low vision as increasing the contrast
between foreground and background content helps improve readability.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- Adds a high contrast light and high contrast dark theme. As with our
other themes, developers can choose between system, class, and always
stylesheets.
While we aim to improve contrast for text and UI components, this
feature prioritizes text in the event that both text and UI component
cannot be improved without one negatively impacting the other.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!--
If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
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## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
Dev build: `7.6.7-dev.11706894781.1cd59fde`
Testing instructions:
1. Open `src/themes/test/css-variables`. Activate the high contrast
light and dark themes to verify that contrast does increase.
2. Use the dev build to integrate the theme into a test app (conference
app, starter app, etc).
I'd recommend using these imports:
```css
@import "@ionic/angular/css/themes/high-contrast.system.css";
@import "@ionic/angular/css/themes/high-contrast-dark.system.css";
```
Note: Make sure this is imported **after** `core.scss`
---------
Co-authored-by: Shawn Taylor <shawn@ionic.io>
Co-authored-by: Brandy Carney <brandyscarney@users.noreply.github.com>
Co-authored-by: Sean Perkins <13732623+sean-perkins@users.noreply.github.com>
Co-authored-by: ionitron <hi@ionicframework.com>
Co-authored-by: Maria Hutt <thetaPC@users.noreply.github.com>
Co-authored-by: Amanda Johnston <90629384+amandaejohnston@users.noreply.github.com>
Issue number: resolves#24638, resolves#18592
---------
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issue. -->
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etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
Developers have requested that Ionic Framework support the dynamic type
feature on iOS for accessibility purposes. Ionic applications do not
respond to font scaling on iOS which can create inaccessible
applications particularly for users with low vision. Ionic apps on
Android devices currently support the Android equivalent due to
functionality in the Chromium webview.
Developers have also requested a way of adjusting the fonts in their
Ionic UI components consistently.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- Ionic components now use `rem` instead of `px` where appropriate. This
means devs can change the font size on `html` and the text in supported
Ionic components will scale up/down appropriately
- Add support for Dynamic Type on iOS (the iOS version of Dynamic Font
Scaling)
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!-- If this introduces a breaking change, please describe the impact
and migration path for existing applications below. -->
## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
---------
Co-authored-by: Maria Hutt <thetaPC@users.noreply.github.com>
Co-authored-by: Brandy Carney <brandyscarney@users.noreply.github.com>
Co-authored-by: Shawn Taylor <shawn@ionic.io>
Co-authored-by: ionitron <hi@ionicframework.com>
Co-authored-by: Sean Perkins <sean@ionic.io>
Co-authored-by: Sean Perkins <13732623+sean-perkins@users.noreply.github.com>
Co-authored-by: Amanda Johnston <90629384+amandaejohnston@users.noreply.github.com>
Issue number: resolves#27273
---------
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<!-- Please do not submit updates to dependencies unless it fixes an
issue. -->
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## What is the current behavior?
When breadcrumb is focused in md mode, background is not set.
## What is the new behavior?
A slight background should have applied on breadcrumb when focused.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!-- If this introduces a breaking change, please describe the impact
and migration path for existing applications below. -->
## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
The Ionic Framework team would like to re-evaluate our approach to improving customization options when building mobile applications. We are looking at other solutions that a) make customizing an app UI easier and b) are applicable to a broader set of developers.
