Some of our customers prefer a seamless design integration of their individual software solutions into the SAP ecosystem (e.g. in context of the BTP platform). So it would be nice to have a SAP Fiori theme like in Kendo UI for jQuery:

• https://docs.telerik.com/kendo-ui/styles-and-layout/less-themes/overview

We would like to use Kendo React to build a micro frontend UI but we did not found any relevant information that this is currently supported.

The main issue we are facing is how it isolate Kendo theme styling between different micro frontends.

Let's say we have 2 micro frontends A and B:

- A is using Kendo v6.

- B is using Kendo v7 (or some other future/past version).

Both of them will include their global Kendo styles which will collide.

After some investigation, we came up with 2 possible approaches:

1. Isolating micro frontends using shadow DOM. This is the most common technique but unfortunately not supported by Kendo React yet.
2. Prepend custom class to all Kendo CSS selectors (for example ".microfronend-a .k-button" instead of just ".k-button").

We have experimented with the second approach and it seems like a way to go. It also required to append all popups to root DOM node of a micro frontend which can be done easily using PopupPropsContext.

But adding a class to all Kendo CSS selector is technically not a trivial task. It would be nice if Kendo supported this out of the box, for example by providing some SCSS configuration variable.

Are there plans to improve 2.0.0 compatibility with kendo themes? math/calc should still be backwards compatible.

When creating a custom build, it's highly impractical to trim down the theme css. The Less source breaks out common widget properties, but the primary themable file lumps all widgets together into a single massive file. It would be nice if this could be split apart further to trim out unused widget styles entirely.

It would be nice if Theme variables would be separated into a different file, to make it possible to import those variables into your own site.less. 
This way colors etc can be re-used across the entire site.

With the new changes,  many variables were removed (like $primary-button-hovered-bg).

It is now generated through internal sass functions - but unfortunately, it only supports mixing color with black/white. resulting in washed-out colors if you want a lighter hover color.

I would expect to have an option to have a more linear lighten/darken sass functions.

Looking at the Kendo theme - try-lighten / try-darken exist that take the same input parameters.

There is also $kendo-solid-button-shade-function - but it is not marked as !default and cannot be overwritten.

When you have a button inside a MultiSelect Footer template (for example), it is different visualized compared to the same button outside of the component. This comes from the k-list-container that is applied when a button is inside a toolbar.

-------ADMIN EDIT---------

A possible workaround for the scenario is to use custom styles as shown below:

<div class="row">
    <div class="col-2">
        <TelerikButton ButtonType="Telerik.Blazor.ButtonType.Button"
                       Icon="k-icon k-i-add"
                       Primary="true">
            New Value
        </TelerikButton>
    </div>

    <div class="col-10">
        <TelerikMultiSelect Data="@(
                                            new List<SelectListItem>()
                                            {
                                                { new SelectListItem { Text = "Text 1", Value = "Value1" } },
                                                { new SelectListItem { Text = "Text 2", Value = "Value2" } },
                                                { new SelectListItem { Text = "Text 3", Value = "Value3" } },
                                                { new SelectListItem { Text = "Text 4", Value = "Value4" } }
                                            })"
                            FilterOperator="StringFilterOperator.Contains"
                            Filterable="true"
                            TItem="SelectListItem"
                            TValue="string"
                            TextField="Text"
                            ValueField="Value">
            <FooterTemplate>
                <TelerikButton ButtonType="Telerik.Blazor.ButtonType.Button"
                               Class="my-nested-button"
                               Icon="k-icon k-i-add"
                               Primary="true">
                    New Value
                </TelerikButton>
            </FooterTemplate>
        </TelerikMultiSelect>
    </div>
</div>

@code{
    public class SelectListItem
    {
        public string Value { get; set; }
        public string Text { get; set; }
    }
}

<style>
    .k-list-container .k-button.my-nested-button {
        background-color: #ff6358;
        align-items: flex-start;
        align-self: flex-start;
    }

    .k-list-container .k-button-primary.my-nested-button,
    .k-list-container .k-button.k-primary.my-nested-button {
        /*copy the colors from the basic button*/
        border-color: #ff6358;
        color: #ffffff;
        background-color: #ff6358;
        background-image: linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.04));
        /*change the flex alignment form the parent container*/
        align-items: flex-start;
        align-self: flex-start;
    }
</style>

It would be awesome to have "style hooks" for all components - this can be implemented through css variables/properties and would allow for things like dynamic theming including support for dark mode etc.

Because css variables/properties can be read and written through javascript this would open up several new ways for dynamic layouts.

CSS variable/properties are supported on all current browsers except IE 11, and it is possible to implement them with a gracefull fallback.

Currently, using npm install --save @progress/kendo-theme-material will get the standard Material Design theme for use across the React Components, but why is Material Black not available this way? (npm install --save @progress/kendo-theme-materialBlack)

Hi Team,

I'd like to request the ability to add a Body section within the ThemeBuilder where the user can set the Body of the entire web document.  The Body section of the ThemeBuilder appears to only affect the Chat UI.

Thank you!

A new Kendo UI theme which is in compliance with and extends Zurb Foundation styles -> http://foundation.zurb.com/sites/docs/kitchen-sink.html

Currently there are 3 application themes: Default, Material, and Bootstrap.
These are nice and helpful however having 3 is quite a bit limiting.

I totally understand that a lot of people will and maybe should create a theme based on their own styles and preferences.
However I honestly think most people probably use a default theme and make small corrections to it in order to suit their needs.

-------

Admin edit: We will be keeping here a list of the suggestions, add your comment which one you would like to see implemented - if it's not on this list, we will add it:

• Dark (black) theme - you can find a basic sample attached below that uses #363636 for background and #d5d5d5 for text colors (two of the main colors for the Black Material theme we have in Kendo), you can further tweak things in the Theme Builder app
• Fluent UI - based on the Fluent UI by Microsoft
• Kendo Themes such as BlueOpal, Silver and Office 365 - you can generate them from the predefined color swatches on the left hand side of the Theme Builder app
• Theme that uses CSS, not SASS variables so that it can be customized at runtime - at the moment, you can generate the needed themes and switch them at runtime as shown here.

------

In WPF there are 20 or so styles.
Why only 3 in Blazor when the web is just as easy to style as WPF?