Color of disabled and/or not in task blocks is sometimes missing

[bjost2s]

When working with disabled blocks, e.g. copying or simply any server interaction, the color of the block disappears. Further the handling during and after using the simulation or debug simulation leads to wrong opacity and/or color. Some examples:
block disabled, initial ok

after opening code view, not ok

after leaving focus, not ok

block not in task, initial ok

after opening and closing debug mode, not ok

[AyaMoussa]

Tested. Issue solved.