Bug 392566

This is present in 4.0.0 and in the latest 4.1.0 (d3f5e19) nightly build, for appimages. It was not present in Krita 3.3.3. This report is based on the use a 1280 x 1024 monitor.

This 'cosmetic' bug would cause confusion for new and inexperienced users.

Throughout Krita, the small black triangle symbol is used to indicate and switch a collapsed/expanded list.
However, there are some places where the triangle is small and indistinct and not easily recognisable for what it is.

e.g: The Edit Brush Settings window, for the list of parameters, for categories such as General, Color, etc.
e.g. The Layers docker blending mode drop down list, for categories such as Favourite, Arithmetic, etc.

There may be other places, not mentioned above.

The only mitigation is to have experience of krita and know what the small black blobs are and how to use them.