Values of metric variables cannot be changed using the same metric unit as the default one

[petar-i-todorov]

Describe the bug
Some variables, like kendo-grid-padding-y and kendo-grid-padding-x, are assigned default values, such as kendo-spacing-2. The value of kendo-spacing-2 uses the rem measurement unit. However, if you change the value of kendo-grid-padding-y to a hard-coded value or to another variable that uses the same metric unit, the validation fails.

To Reproduce
Steps to reproduce the behavior:

1. Open a new Kendo Default project.
2. Open the Grid component.
3. Enable the component-specific variables.
4. Set the value of kendo-grid-padding-y to 1rem.

Actual Results
The validation fails, even though the kendo-grid-padding-y variable refers to the variable kendo-spacing-2 (rem-based) by default.

Expected behavior
The validation doesn't fail.

Screenshots

Related Items
https://feedback.telerik.com/themebuilder/1655237-allow-rem-values-in-all-metric-variables

Reported through t.1673350.

• Issue 1: The Issue from the comment is still reproducible
• Issue 2: The original issue is reproducible if there is more than one level of referance

[NickIliev]

+1 from t.1674488

Reproducible with the default values in brand-new Material project.

Repro steps:

1. Create a new project with the Material theme
2. Observe the default value for $kendo-spacing-4b (it's 1rem)
3. Set $kendo-spacing-4 to 8px
4. Try set $kendo-spacing-4 to 1rem

Result: the validation fails and prevents from reverting to REM units.

[Martin-Hristov]

Issue 1: The Issue from the comment is still reproducible

#135 (comment)

[Martin-Hristov]

Issue 2: The original issue is reproducible if there is more than one level of referance

1. Open Kendo Default project
2. Open the Grid
3. Check that $kendo-grid-cell-padding-x is equal to $kendo-grid-padding-x which equal $kendo-spacing-2 = 1rem
4. Try to set $kendo-grid-cell-padding-x to 2rem

Actual: the validation fails and the original value is restored. If the user first sets $kendo-grid-padding-x to 1rem, than $kendo-grid-cell-padding-x can also be set to rem values

Expected: All variables that can be traced to rem values can accept them

[NickIliev]

+1 from t.1677308 (Kendo Default theme - changing the kendo-border-radius variable to any other radii-generated variables that uses REM)

The client hits "the value is invalid. The supported units are: px, pt" when trying to change the kendo-border-radius-lg to $kendo-border-raduis-md and vice verse.