themes kitten: When using the Default theme as an auto switch theme include all the actual settings values

Fixes #8124

docs/changelog.rst

@@ -84,6 +84,11 @@ consumption to do the same tasks.
 Detailed list of changes
 -------------------------------------
 
+0.38.1 [future]
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+- themes kitten: When using the *Default* theme as an auto switch theme include all the actual settings values (:iss:`8124`)
+
 0.38.0 [2024-12-15]
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

gen/go_code.py

@@ -583,7 +583,7 @@ def load_ref_map() -> dict[str, dict[str, str]]:
 def generate_constants() -> str:
     from kittens.hints.main import DEFAULT_REGEX
     from kittens.query_terminal.main import all_queries
-    from kitty.colors import ThemeFile
+    from kitty.colors import ThemeFile, default_theme
     from kitty.config import option_names_for_completion
     from kitty.fast_data_types import FILE_TRANSFER_CODE
     from kitty.options.utils import allowed_shell_integration_values, url_style_map
@@ -629,6 +629,7 @@ var DocTitleMap = map[string]string{serialize_go_dict(ref_map['doc'])}
 var AllowedShellIntegrationValues = []string{{ {str(sorted(allowed_shell_integration_values))[1:-1].replace("'", '"')} }}
 var QueryNames = []string{{ {query_names} }}
 var CommentedOutDefaultConfig = "{serialize_as_go_string(commented_out_default_config())}"
+var DefaultColorTheme = `{default_theme()}`
 var KittyConfigDefaults = struct {{
 Term, Shell_integration, Select_by_word_characters, Url_excluded_characters, Shell string
 Wheel_scroll_multiplier int

kittens/themes/ui.go

@@ -525,7 +525,11 @@ func (self *handler) on_accepting_key_event(ev *loop.KeyEvent) error {
 
 	scheme := func(name string) error {
 		ev.Handled = true
-		self.themes_list.CurrentTheme().SaveInFile(utils.ConfigDir(), name)
+		{
+			theme := self.themes_list.CurrentTheme()
+			theme.GenerateDefaultSettings()
+			theme.SaveInFile(utils.ConfigDir(), name)
+		}
 		self.update_recent()
 		self.lp.Quit(0)
 		return nil

kitty/colors.py

@@ -187,3 +187,16 @@ def patch_colors(
             if default_bg_changed:
                 boss.default_bg_changed_for(w.id)
             w.refresh()
+
+
+def default_theme() -> str:
+    from kitty.options.definition import definition
+    from kitty.options.types import defaults, option_names
+    ans = []
+
+    for name in option_names:
+        defval = getattr(defaults, name)
+        if isinstance(defval, Color) or name in nullable_colors or name == 'transparent_background_colors':
+            defval = definition.option_map[name].defval_as_string
+            ans.append(f'{name} {defval}')
+    return '\n'.join(ans)

tools/themes/collection.go

@@ -22,8 +22,10 @@ import (
 	"sync"
 	"time"
 
+	"kitty"
 	"kitty/tools/cli"
 	"kitty/tools/config"
+	"kitty/tools/tty"
 	"kitty/tools/tui/loop"
 	"kitty/tools/tui/subseq"
 	"kitty/tools/utils"
@@ -541,6 +543,7 @@ type Theme struct {
 	zip_reader                  *zip.File
 	is_user_defined             bool
 	path_for_user_defined_theme string
+	generate_default_settings   bool
 }
 
 func (self *Theme) Name() string        { return self.metadata.Name }
@@ -549,6 +552,14 @@ func (self *Theme) Blurb() string       { return self.metadata.Blurb }
 func (self *Theme) IsDark() bool        { return self.metadata.Is_dark }
 func (self *Theme) IsUserDefined() bool { return self.is_user_defined }
 
+func (self *Theme) GenerateDefaultSettings() func() {
+	orig := self.generate_default_settings
+	self.generate_default_settings = true
+	return func() {
+		self.generate_default_settings = orig
+	}
+}
+
 func (self *Theme) load_code() (string, error) {
 	if self.zip_reader != nil {
 		f, err := self.zip_reader.Open()
@@ -586,6 +597,8 @@ func (self *Theme) SaveInDir(dirpath string) (err error) {
 	return utils.AtomicUpdateFile(path, bytes.NewReader(utils.UnsafeStringToBytes(code)), 0o644)
 }
 
+var debugprintln = tty.DebugPrintln
+
 func (self *Theme) SaveInFile(config_dir, config_file_name string) (err error) {
 	_ = os.MkdirAll(config_dir, 0o755)
 	path := filepath.Join(config_dir, config_file_name)
@@ -593,6 +606,10 @@ func (self *Theme) SaveInFile(config_dir, config_file_name string) (err error) {
 	if err != nil {
 		return err
 	}
+	if self.generate_default_settings && self.Name() == "Default" {
+		code += "\n" + kitty.DefaultColorTheme
+	}
+
 	return utils.AtomicUpdateFile(path, bytes.NewReader(utils.UnsafeStringToBytes(code)), 0o644)
 }