Under Options Display what is

[rgleason]

@nohal

https://opencpn.org/wiki/dokuwiki/doku.php?id=opencpn:manual_basic:set_options:display

The cache understands color scheme changes. Cache entries are automatically created for each of the 4 possible BSB color schemes, as they are encountered in normal operation.FIXME What is a “BSB color scheme? sailor1026

[rgleason]

@bdbcat Can you explain the above what is BSB color schemes?

[TwoCanPlugIn]

Rick, I think this refers to the four colour schemes (Default, Day, Dusk & Night) defined in the IHO Document S-52, Specifications for Chart Content and Display Aspects of ECDIS.

[Hakansv]

Another topic here:
The "Show FPS" check box is what I can see nowadays only relevant for Linux (&MacOS?) when OpenCPN is started from a command prompt. Then this is printed: printf(" OpenGL frame time: %3.0f ms--> %3.0fFPS\n". Nothing is printed to the normal OCPN window.
(printf is not available in Windows in the same way.)
As long the checkbox exist we would change the manual accordingly? (Change the text and delete picture)

Edit:
@bdbcat
Hide the check box for others?

diff --git a/gui/src/options.cpp b/gui/src/options.cpp
index 9c716574f..2bdbdc0b6 100644
--- a/gui/src/options.cpp
+++ b/gui/src/options.cpp
@@ -9228,6 +9228,7 @@ void OpenGLOptionsDlg::Populate(void) {
   }
 #else
   m_cbSoftwareGL->Hide();
+  m_cbShowFPS->Hide();
 #endif