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13303416b8
Add more text roles and links. Fix typos. Adjust the default shortcut order in overview. Notes on the impact of kitty-open.desktop on the default open apps. Document KITTY_DEVELOP_FROM in glossary. Add Python type hints to the watcher example. Mention clone-in-kitty in launch --copy-env. Fix remote control ls example does not work, by escaping the backslash.
27 lines
1.3 KiB
ReStructuredText
27 lines
1.3 KiB
ReStructuredText
Saving and restoring colors
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It is often useful for a full screen application with its own color themes to
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set the default foreground, background, selection and cursor colors and the ANSI
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color table. This allows for various performance optimizations when drawing the
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screen. The problem is that if the user previously used the escape codes to
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change these colors themselves, then running the full screen application will
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lose those changes even after it exits. To avoid this, kitty introduces a new
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pair of *OSC* escape codes to push and pop the current color values from a
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stack::
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<ESC>]30001<ESC>\ # push onto stack
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<ESC>]30101<ESC>\ # pop from stack
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These escape codes save/restore the colors, default background, default
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foreground, selection background, selection foreground and cursor color and the
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256 colors of the ANSI color table.
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.. note:: In July 2020, after several years, xterm copied this protocol
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extension, without acknowledgement, and using incompatible escape codes
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(XTPUSHCOLORS, XTPOPCOLORS, XTREPORTCOLORS). And they decided to save not
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just the dynamic colors but the entire ANSI color table. In the interests of
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promoting interoperability, kitty added support for xterm's escape codes as
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well, and changed this extension to also save/restore the entire ANSI color
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table.
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