feat: 0-255 color support in custom themes

internal/tui/theme/manager.go

@@ -202,6 +202,54 @@ func LoadCustomTheme(customTheme map[string]any) (Theme, error) {
 			theme.DiffAddedLineNumberBgColor = adaptiveColor
 		case "diffremovedlinenumberbg":
 			theme.DiffRemovedLineNumberBgColor = adaptiveColor
+		case "syntaxcomment":
+			theme.SyntaxCommentColor = adaptiveColor
+		case "syntaxkeyword":
+			theme.SyntaxKeywordColor = adaptiveColor
+		case "syntaxfunction":
+			theme.SyntaxFunctionColor = adaptiveColor
+		case "syntaxvariable":
+			theme.SyntaxVariableColor = adaptiveColor
+		case "syntaxstring":
+			theme.SyntaxStringColor = adaptiveColor
+		case "syntaxnumber":
+			theme.SyntaxNumberColor = adaptiveColor
+		case "syntaxtype":
+			theme.SyntaxTypeColor = adaptiveColor
+		case "syntaxoperator":
+			theme.SyntaxOperatorColor = adaptiveColor
+		case "syntaxpunctuation":
+			theme.SyntaxPunctuationColor = adaptiveColor
+		case "markdowntext":
+			theme.MarkdownTextColor = adaptiveColor
+		case "markdownheading":
+			theme.MarkdownHeadingColor = adaptiveColor
+		case "markdownlink":
+			theme.MarkdownLinkColor = adaptiveColor
+		case "markdownlinktext":
+			theme.MarkdownLinkTextColor = adaptiveColor
+		case "markdowncode":
+			theme.MarkdownCodeColor = adaptiveColor
+		case "markdownblockquote":
+			theme.MarkdownBlockQuoteColor = adaptiveColor
+		case "markdownemph":
+			theme.MarkdownEmphColor = adaptiveColor
+		case "markdownstrong":
+			theme.MarkdownStrongColor = adaptiveColor
+		case "markdownhorizontalrule":
+			theme.MarkdownHorizontalRuleColor = adaptiveColor
+		case "markdownlistitem":
+			theme.MarkdownListItemColor = adaptiveColor
+		case "markdownlistitemenum":
+			theme.MarkdownListEnumerationColor = adaptiveColor
+		case "markdownimage":
+			theme.MarkdownImageColor = adaptiveColor
+		case "markdownimagetext":
+			theme.MarkdownImageTextColor = adaptiveColor
+		case "markdowncodeblock":
+			theme.MarkdownCodeBlockColor = adaptiveColor
+		case "markdownlistenumeration":
+			theme.MarkdownListEnumerationColor = adaptiveColor
 		default:
 			slog.Warn("Unknown color key in custom theme", "key", key)
 		}

internal/tui/theme/theme.go

@@ -235,7 +235,19 @@ func ParseAdaptiveColor(value any) (lipgloss.AdaptiveColor, error) {
 		}, nil
 	}
 
-	// Case 2: Map with dark and light keys
+	// Case 2: Int value between 0 and 255
+	if numericVal, ok := value.(float64); ok {
+		intVal := int(numericVal)
+		if intVal < 0 || intVal > 255 {
+			return lipgloss.AdaptiveColor{}, fmt.Errorf("invalid int color value (must be between 0 and 255): %d", intVal)
+		}
+		return lipgloss.AdaptiveColor{
+			Dark:  fmt.Sprintf("%d", intVal),
+			Light: fmt.Sprintf("%d", intVal),
+		}, nil
+	}
+
+	// Case 3: Map with dark and light keys
 	if colorMap, ok := value.(map[string]any); ok {
 		darkVal, darkOk := colorMap["dark"]
 		lightVal, lightOk := colorMap["light"]
@@ -248,7 +260,20 @@ func ParseAdaptiveColor(value any) (lipgloss.AdaptiveColor, error) {
 		lightHex, lightIsString := lightVal.(string)
 
 		if !darkIsString || !lightIsString {
-			return lipgloss.AdaptiveColor{}, fmt.Errorf("color values must be strings")
+			darkVal, darkIsNumber := darkVal.(float64)
+			lightVal, lightIsNumber := lightVal.(float64)
+
+			if !darkIsNumber || !lightIsNumber {
+				return lipgloss.AdaptiveColor{}, fmt.Errorf("color map values must be strings or ints")
+			}
+
+			darkInt := int(darkVal)
+			lightInt := int(lightVal)
+
+			return lipgloss.AdaptiveColor{
+				Dark:  fmt.Sprintf("%d", darkInt),
+				Light: fmt.Sprintf("%d", lightInt),
+			}, nil
 		}
 
 		if !hexColorRegex.MatchString(darkHex) || !hexColorRegex.MatchString(lightHex) {