Thank you for the latest update to a classic. My comments in this post concern the new toolbar icons. I upgraded to PM4.6.1 from PM4.5.2 in WinXP SP3.
1) I agree with another post that smaller toolbar icons should be available.
2) Some icons still need updating. I am using a toolbar.pm file and the old icons (PM4.5.2) appear on the toolbar. The relevant toolbar.pm entries are <0,10114,0,1846,"Apply general rule set to folder"> and <0,10187,0,1841,"Review queued mail">.
3) I think the arrows & question mark in the send/check mail icons (1828.png "Send all queued mail," 1827.png "Check you POP3 host for new mail," 1829.png "Both check and send mail in one operation," & 1835.png "Perform a selective download.") should be changed to improve the contrast. The current green and blue arrows are difficult to see against the green and blue planet earth.
4) I think the spacing of the "Graphics only" icons and the "Graphics and text" icons should be the same. I like the spacing of the "Graphics and text" icons, which is more compact than the spacing of the "Graphics only" icons.
Thanks again for all your work on Pegasus Mail.