Is there an easy way to manually change the icons in the Headers that show the "open/closed" nature of the header menu?
When I change the background of the header, it doesn't gel with the icon, which bleeds blue.
Those are icons that are distributed with the product and installed into the 3rdParty\Images or Accessory\Images for C7 and are talled taskxp*.ico There are 8 of them. 4 blue and 4 white. Two up arrows, one enabled, the other disabled (grayed) and two down arrows for each color. The name of those icons is fixed in the class, but you could make copies of those icons and place them in the application folder (which the IDE should pick up before the ones in the 3rdParty\Images) and make changes to them there.
This is definitely an area where a bit more flexibility could be added by allowing selecting the icons to use. The rule for the names are:
Not expanded: "taskxpe"
If hovering, add "s"
If headers are using HSTYLE_HIGHLIGHTER add "w"
Basically you need 4 icons for each style:
Hovering up arrow
Hovering down arrow
Hope this helps:)