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Allow setting color table value to none via OSC 21

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This commit is contained in:
Kovid Goyal
2026-03-27 20:50:28 +05:30
parent 0a3a9031c5
commit 7e5aac2e2b
3 changed files with 16 additions and 3 deletions
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5
kitty/colors.c
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@@ -586,6 +586,11 @@ set_color(ColorProfile *self, PyObject *args) {
if (!PyArg_ParseTuple(args, "Bk", &i, &val)) return NULL;
self->color_table[i] = val;
self->dirty = true;
if (val == NULL_COLOR_VALUE) {
bool semantic, dynamic = palette_generation_is_dynamic(global_state.options_object, &semantic);
if (dynamic) generate_256_palette(self, self->color_table, semantic);
else self->color_table[i] = FG_BG_256[i];
}
Py_RETURN_NONE;
}

9
kitty/window.py
View File

@@ -49,6 +49,7 @@ from .fast_data_types import (
GLFW_RELEASE,
GLFW_REPEAT,
NO_CURSOR_SHAPE,
NULL_COLOR_VALUE,
SCROLL_FULL,
SCROLL_LINE,
SCROLL_PAGE,
@@ -577,9 +578,13 @@ def color_control(cp: ColorProfile, code: int, value: str | bytes | memoryview =
else:
if 0 <= colnum <= 255:
val = val.partition('@')[0]
col = to_color(val)
if col is not None:
if val:
if (col := to_color(val)) is not None:
cp.set_color(colnum, color_as_int(col))
elif colnum > 15:
cp.set_color(colnum, NULL_COLOR_VALUE)
else:
cp.set_color(colnum, get_options().color_table[colnum])
else:
if attr:
delattr(cp, attr)

3
kitty_tests/screen.py
View File

@@ -1616,6 +1616,9 @@ class TestScreen(BaseTest):
q({'selection_background': ''})
self.assertIsNone(s.color_profile.highlight_bg)
q({'selection_background': '?'}, {'selection_background': ''})
opts = self.set_options({'palette_generate': 'semantic'})
q({'213': ''})
q({'213': '?'}, {'213': Color(216, 125, 215)})
s.color_profile.reload_from_opts(opts)
q({'transparent_background_color9': '?'}, {'transparent_background_color9': '?'})
q({'transparent_background_color2': '?'}, {'transparent_background_color2': ''})