Alter Version

vendor/PhpSpreadsheet/Reader/Xls/Style/FillPattern.php

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+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Reader\Xls\Style;
+
+use PhpOffice\PhpSpreadsheet\Style\Fill;
+
+class FillPattern
+{
+    protected static $map = [
+        0x00 => Fill::FILL_NONE,
+        0x01 => Fill::FILL_SOLID,
+        0x02 => Fill::FILL_PATTERN_MEDIUMGRAY,
+        0x03 => Fill::FILL_PATTERN_DARKGRAY,
+        0x04 => Fill::FILL_PATTERN_LIGHTGRAY,
+        0x05 => Fill::FILL_PATTERN_DARKHORIZONTAL,
+        0x06 => Fill::FILL_PATTERN_DARKVERTICAL,
+        0x07 => Fill::FILL_PATTERN_DARKDOWN,
+        0x08 => Fill::FILL_PATTERN_DARKUP,
+        0x09 => Fill::FILL_PATTERN_DARKGRID,
+        0x0A => Fill::FILL_PATTERN_DARKTRELLIS,
+        0x0B => Fill::FILL_PATTERN_LIGHTHORIZONTAL,
+        0x0C => Fill::FILL_PATTERN_LIGHTVERTICAL,
+        0x0D => Fill::FILL_PATTERN_LIGHTDOWN,
+        0x0E => Fill::FILL_PATTERN_LIGHTUP,
+        0x0F => Fill::FILL_PATTERN_LIGHTGRID,
+        0x10 => Fill::FILL_PATTERN_LIGHTTRELLIS,
+        0x11 => Fill::FILL_PATTERN_GRAY125,
+        0x12 => Fill::FILL_PATTERN_GRAY0625,
+    ];
+
+    /**
+     * Get fill pattern from index
+     * OpenOffice documentation: 2.5.12.
+     *
+     * @param int $index
+     *
+     * @return string
+     */
+    public static function lookup($index)
+    {
+        if (isset(self::$map[$index])) {
+            return self::$map[$index];
+        }
+
+        return Fill::FILL_NONE;
+    }
+}