Hello folks,

When I evaluate in latest Pharo 3:

DynamicComposableModel new
instantiateModels: #(
a TreeModel
b TreeModel
c TreeModel);
openWithSpecLayout:�
(SpecLayout composed
newColumn: [ :column |
column�
newRow: [ :row |
row newColumn: #a.
row newColumn: #b.
row newColumn: #c width: 80 ] ];
yourself)

===>�

Inline image 2

Maybe I'm wrong: I expected that #a and #b have the same width. But it looks like the layout algorithm first splits the space half/half between #a and #b, and later it only shrinks #b to give the fixed space to #c.

Should I report an issue? or specify layout in other way?

Thanks,
Mart�n