bug(horizon): radio button border-style resolved to none

[platon-rov]

Description

The next variables resolved to none in horizon evening/morning themes:

• sapField_WarningBorderStyle
• sapField_InvalidBorderStyle
• sapField_SuccessBorderStyle
• sapField_InformationBorderStyle

That leads to the missing border of the radio button circle

Version

11.1.38

[dominikschreiber]

It was a deliberate decision by SAP Design to set those sapField_*BorderStyle parameters to none in Horizon (introduced with theming-base-content@11.1.36).

This is intended to work with the sapField_*BackgroundStyle parameters to make it possible to switch between bottom-borders (in Horizon) and four-sided borders (in all other themes). I've described the mechanism in Switchable forders for fields with the 11.1.36 theming-base-content.

The guidance by SAP Design is to use the sapField_*BorderStyle parameters only in combination with the sapField_*BackgroundStyle parameters, and to hard-code the border style (e.g. solid) in all other cases (especially for CheckBoxes and RadioButtons).