Uwe Stöhr wrote:
Uwe Stöhr schrieb:

I need to describe this in the docs. What exactly does the pixmap?

Is this description correct?:

B.1.1.6 Pixmap Cache

The option Enable Pixmap Cache activates a cache for screen fonts and icons like toolbar buttons. Using this cache improves the speed performance of LyX but might decrease the quality of the screen fonts.

Except for the icons part, it's correct. This cache is only about text painting. Look at the status.15x entry:

- The pixmap cache that was introduced in LyX 1.5.2 to improve performance
  can now be switched on and off in Preferences, since it might decrease
  on-screen display quality of fonts (subpixel hinting). By default, the
  cache is disabled. If you experience performance problems, turn in on
  (Mac and Windows only).

Abdel.

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