‘Close’ icon on tabs in System Browser gets clipped

[Rinzwind]

The ‘close’ icon on tabs in the System Browser gets clipped in Pharo 12 build 1258:

Build 1236 seems to be the last build in which the icons don’t get clipped:

I assume, but didn’t check, this is due to some of the changes in commit b64e3bc1df1b06f4 in the Spec repository.

[demarey]

I and @ISayarLu can confirm the problem started in image number 1237.
The close button is still present but has a ridiculous size of 2@18 instead of 16@18.

It was introduced by the merge of a PR in Spec integration branch: pharo-spec/Spec#1486
The code causing problems lies in src/Spec2-Adapters-Morphic/SpMorphicBoxLayoutCalculatorLeftToRight.class.st.
See pharo-spec/Spec@b64e3bc#diff-79065f23e35b422864e3fef686ade71d813e234eb22cb1ef8a955e34ba5d42a8L66-R78
reverting the method SpMorphicBoxLayoutCalculatorLeftToRight>>#doCalculateFor:in: fixes the problem but I do not think it is the right fix. @estebanlm Could you help?

[estebanlm]

it will fix that but it will break other places :)
So I would say yes, is around there but removing is not the solution