PB 4.40 Beta 4. It is difficult to recognize the function of several icons in the
toolbar of the PB 4.40 IDE...
Classic theme in the PB 4.20 IDE running on Windows 98:

Classic theme in the PB 4.40 Beta 4 IDE running on Windows 98:

Silk theme in the PB 4.40 Beta 4 IDE running in Windows 98:

I think that this is a problem of the new alpha channel support in all GUI
elements which older versions of Windows don't support. In older versions
of Windows the alpha-channel image is converted to an icon with mask. Is
it possible to display the toolbar in the IDE running in Windows 98 without
alpha channel?
In the PureBasic blog Freak wrote:This brings a new “problem”. With Linux supporting the alpha-channel in every GUI element, the Windows version is lacking behind again because it still requires Icon files for some GUI things. That cannot stand! XP and Vista actually solve this quite well with their 32bit icon support so this wasn’t so hard to do. Older versions however don’t support that, so to get the best possible result an alpha-channel image is converted to an icon with a mask to get at least some transparency.