[a11y] 11.2.4.7 Focus visible

[tschiebel]

audit: https://infinite.owncloud.com/s/QtwuiGHikwFjozV

https://www.etsi.org/deliver/etsi_en/301500_301599/301549/03.02.01_60/en_301549v030201p.pdf
https://github.com/BIK-BITV/BIK-App-Test/tree/main/Pr%C3%BCfschritte/de

Note: If the focus is highlighted exclusively by a color change,
the contrast between the focused and unfocused state should be sufficient.
It is recommended that the contrast ratio is at least 3:1.

Personal Space

• All interactive elements on the page have a poorly recognizable keyboard focus.
  keyboard focus. The contrast between the focused and unfocused state
  is well below the recommended contrast ratio of 3:1.
  the contrast of the labels on the buttons deteriorates when focusing.
  buttons deteriorate.
  
  

Menu

• All interactive elements on the page have a poorly recognizable keyboard focus.
  keyboard focus. The contrast between the focused and unfocused state
  is well below the recommended contrast ratio of 3:1.
  

Share

• All interactive elements on the page have a poorly recognizable keyboard focus.
  keyboard focus. The contrast between the focused and unfocused state is well below the recommended contrast ratio of 3:1.
  is well below the recommended contrast ratio of 3:1.
  the contrast of the buttons themselves deteriorates when focusing.
  

Edit shared Link

• All interactive elements on the page, with the exception of the input field, are given a
  a poorly recognizable keyboard focus.
  

Spaces

• All interactive elements on the page have a poorly recognizable keyboard focus.
  keyboard focus. The contrast between the focused and unfocused state
  is well below the recommended contrast ratio of 3:1.
  e.g:
  

Manage account

• All interactive elements on the page have a poorly recognizable keyboard focus.
  keyboard focus. The contrast between the focused and unfocused state
  is well below the recommended contrast ratio of 3:1.
  e.g:
  

[jesmrec]

Check if color is set from OS, if it is setup-able. In every case, make a decision and document it.