diff --git a/fhir-date-offene-periods.svg b/fhir-date-offene-periods.svg
index 4899ab2..8c8fe25 100644
--- a/fhir-date-offene-periods.svg
+++ b/fhir-date-offene-periods.svg
@@ -1,27 +1,32 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="1160" height="788" viewBox="0 0 1160 788" font-family="Segoe UI, Arial, sans-serif">
 <rect width="1160" height="788" fill="#ffffff"/>
+<defs>
+
+</defs>
+
 <text x="580.0" y="30" font-size="22" font-weight="700" fill="#1a1a2e" text-anchor="middle">FHIR date: Matching gegen offene (unvollstaendige) Period/Range</text>
-<text x="580.0" y="52" font-size="14" fill="#555" text-anchor="middle">Fehlender Start = -unendlich  |  Fehlendes Ende = +unendlich  |  Pfeilspitze = offenes Ende</text>
+<text x="580.0" y="52" font-size="14" fill="#555" text-anchor="middle">Fehlender Start = -unendlich  |  Fehlendes Ende = +unendlich  |  Farbverlauf = offenes Ende</text>
 <text x="580.0" y="72" font-size="12.5" fill="#777" text-anchor="middle">Suchwert: date=&lt;praefix&gt;2023-06-15  |  Gruen = Treffer, Rot = kein Treffer</text>
 <text x="30" y="108" font-size="20" font-weight="700" fill="#111">gt</text>
 <text x="180" y="108" font-size="12.5" fill="#555">Fehlendes Ende = +unendlich -&gt; ueberlappt fast immer den oberen Bereich.</text>
 <rect x="700.0" y="124" width="360.0" height="124" fill="#1565c0" opacity="0.07"/>
 <line x1="260" y1="134" x2="1060" y2="134" stroke="#333" stroke-width="1.5"/>
 <polygon points="1060,134 1053,130 1053,138" fill="#333"/>
-<text x="260" y="150" font-size="10" fill="#999" text-anchor="start">Zeitachse</text>
 <line x1="700.0" y1="134" x2="700.0" y2="240" stroke="#333" stroke-width="2" />
 <text x="700.0" y="124" font-size="11.5" fill="#333" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
-<rect x="660.0" y="152" width="380.0" height="16" rx="4" fill="#2e7d32"/>
-<polygon points="1040,160 1027,152 1027,168" fill="#2e7d32"/>
+<rect x="660.0" y="152" width="364.0" height="16" fill="#2e7d32"/>
+<rect x="660.0" y="152" width="10" height="16" rx="4" fill="#2e7d32"/>
+<polygon points="1040,160 1024,152 1024,168" fill="#2e7d32"/>
 <text x="246" y="164" font-size="11.5" fill="#333" text-anchor="end">Period D: nur Start (laeuft noch)</text>
 <path d="M 1074 160 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
-<rect x="280" y="186" width="410.0" height="16" rx="4" fill="#c62828"/>
-<polygon points="280,194 293,186 293,202" fill="#c62828"/>
+<rect x="296" y="186" width="394.0" height="16" fill="#c62828"/>
+<polygon points="280,194 296,186 296,202" fill="#c62828"/>
+<rect x="680.0" y="186" width="10" height="16" rx="4" fill="#c62828"/>
 <text x="246" y="198" font-size="11.5" fill="#333" text-anchor="end">Period E: nur Ende (Start unbekannt)</text>
 <line x1="1075" y1="187" x2="1089" y2="201" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="201" x2="1089" y2="187" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
-<rect x="280" y="220" width="760" height="16" rx="4" fill="#2e7d32"/>
-<polygon points="280,228 293,220 293,236" fill="#2e7d32"/>
-<polygon points="1040,228 1027,220 1027,236" fill="#2e7d32"/>
+<rect x="296" y="220" width="728" height="16" fill="#2e7d32"/>
+<polygon points="280,228 296,220 296,236" fill="#2e7d32"/>
+<polygon points="1040,228 1024,220 1024,236" fill="#2e7d32"/>
 <text x="246" y="232" font-size="11.5" fill="#333" text-anchor="end">Period F: weder Start noch Ende bekannt</text>
 <path d="M 1074 228 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
 <line x1="30" y1="248" x2="1130" y2="248" stroke="#eee" stroke-width="1"/>
@@ -30,20 +35,21 @@
 <rect x="700.0" y="286" width="360.0" height="124" fill="#1565c0" opacity="0.07"/>
 <line x1="260" y1="296" x2="1060" y2="296" stroke="#333" stroke-width="1.5"/>
 <polygon points="1060,296 1053,292 1053,300" fill="#333"/>
-<text x="260" y="312" font-size="10" fill="#999" text-anchor="start">Zeitachse</text>
 <line x1="700.0" y1="296" x2="700.0" y2="402" stroke="#333" stroke-width="2" stroke-dasharray="4,4"/>
 <text x="700.0" y="286" font-size="11.5" fill="#333" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
-<rect x="660.0" y="314" width="380.0" height="16" rx="4" fill="#c62828"/>
-<polygon points="1040,322 1027,314 1027,330" fill="#c62828"/>
+<rect x="660.0" y="314" width="364.0" height="16" fill="#c62828"/>
+<rect x="660.0" y="314" width="10" height="16" rx="4" fill="#c62828"/>
+<polygon points="1040,322 1024,314 1024,330" fill="#c62828"/>
 <text x="246" y="326" font-size="11.5" fill="#333" text-anchor="end">Period D: nur Start (laeuft noch)</text>
 <line x1="1075" y1="315" x2="1089" y2="329" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="329" x2="1089" y2="315" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
-<rect x="280" y="348" width="410.0" height="16" rx="4" fill="#c62828"/>
-<polygon points="280,356 293,348 293,364" fill="#c62828"/>
+<rect x="296" y="348" width="394.0" height="16" fill="#c62828"/>
+<polygon points="280,356 296,348 296,364" fill="#c62828"/>
+<rect x="680.0" y="348" width="10" height="16" rx="4" fill="#c62828"/>
 <text x="246" y="360" font-size="11.5" fill="#333" text-anchor="end">Period E: nur Ende (Start unbekannt)</text>
 <line x1="1075" y1="349" x2="1089" y2="363" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="363" x2="1089" y2="349" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
-<rect x="280" y="382" width="760" height="16" rx="4" fill="#c62828"/>
-<polygon points="280,390 293,382 293,398" fill="#c62828"/>
-<polygon points="1040,390 1027,382 1027,398" fill="#c62828"/>
+<rect x="296" y="382" width="728" height="16" fill="#c62828"/>
+<polygon points="280,390 296,382 296,398" fill="#c62828"/>
+<polygon points="1040,390 1024,382 1024,398" fill="#c62828"/>
 <text x="246" y="394" font-size="11.5" fill="#333" text-anchor="end">Period F: weder Start noch Ende bekannt</text>
 <line x1="1075" y1="383" x2="1089" y2="397" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="397" x2="1089" y2="383" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
 <line x1="30" y1="410" x2="1130" y2="410" stroke="#eee" stroke-width="1"/>
@@ -52,20 +58,21 @@
 <rect x="260" y="448" width="440.0" height="124" fill="#1565c0" opacity="0.07"/>
 <line x1="260" y1="458" x2="1060" y2="458" stroke="#333" stroke-width="1.5"/>
 <polygon points="1060,458 1053,454 1053,462" fill="#333"/>
-<text x="260" y="474" font-size="10" fill="#999" text-anchor="start">Zeitachse</text>
 <line x1="700.0" y1="458" x2="700.0" y2="564" stroke="#333" stroke-width="2" />
 <text x="700.0" y="448" font-size="11.5" fill="#333" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
-<rect x="660.0" y="476" width="380.0" height="16" rx="4" fill="#2e7d32"/>
-<polygon points="1040,484 1027,476 1027,492" fill="#2e7d32"/>
+<rect x="660.0" y="476" width="364.0" height="16" fill="#2e7d32"/>
+<rect x="660.0" y="476" width="10" height="16" rx="4" fill="#2e7d32"/>
+<polygon points="1040,484 1024,476 1024,492" fill="#2e7d32"/>
 <text x="246" y="488" font-size="11.5" fill="#333" text-anchor="end">Period D: nur Start (laeuft noch)</text>
 <path d="M 1074 484 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
-<rect x="280" y="510" width="410.0" height="16" rx="4" fill="#2e7d32"/>
-<polygon points="280,518 293,510 293,526" fill="#2e7d32"/>
+<rect x="296" y="510" width="394.0" height="16" fill="#2e7d32"/>
+<polygon points="280,518 296,510 296,526" fill="#2e7d32"/>
+<rect x="680.0" y="510" width="10" height="16" rx="4" fill="#2e7d32"/>
 <text x="246" y="522" font-size="11.5" fill="#333" text-anchor="end">Period E: nur Ende (Start unbekannt)</text>
 <path d="M 1074 518 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
-<rect x="280" y="544" width="760" height="16" rx="4" fill="#2e7d32"/>
-<polygon points="280,552 293,544 293,560" fill="#2e7d32"/>
-<polygon points="1040,552 1027,544 1027,560" fill="#2e7d32"/>
+<rect x="296" y="544" width="728" height="16" fill="#2e7d32"/>
+<polygon points="280,552 296,544 296,560" fill="#2e7d32"/>
+<polygon points="1040,552 1024,544 1024,560" fill="#2e7d32"/>
 <text x="246" y="556" font-size="11.5" fill="#333" text-anchor="end">Period F: weder Start noch Ende bekannt</text>
 <path d="M 1074 552 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
 <line x1="30" y1="572" x2="1130" y2="572" stroke="#eee" stroke-width="1"/>
@@ -74,20 +81,22 @@
 <rect x="260" y="610" width="440.0" height="124" fill="#1565c0" opacity="0.07"/>
 <line x1="260" y1="620" x2="1060" y2="620" stroke="#333" stroke-width="1.5"/>
 <polygon points="1060,620 1053,616 1053,624" fill="#333"/>
-<text x="260" y="636" font-size="10" fill="#999" text-anchor="start">Zeitachse</text>
 <line x1="700.0" y1="620" x2="700.0" y2="726" stroke="#333" stroke-width="2" stroke-dasharray="4,4"/>
 <text x="700.0" y="610" font-size="11.5" fill="#333" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
-<rect x="660.0" y="638" width="380.0" height="16" rx="4" fill="#c62828"/>
-<polygon points="1040,646 1027,638 1027,654" fill="#c62828"/>
+<rect x="660.0" y="638" width="364.0" height="16" fill="#c62828"/>
+<rect x="660.0" y="638" width="10" height="16" rx="4" fill="#c62828"/>
+<polygon points="1040,646 1024,638 1024,654" fill="#c62828"/>
 <text x="246" y="650" font-size="11.5" fill="#333" text-anchor="end">Period D: nur Start (laeuft noch)</text>
 <line x1="1075" y1="639" x2="1089" y2="653" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="653" x2="1089" y2="639" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
-<rect x="280" y="672" width="410.0" height="16" rx="4" fill="#2e7d32"/>
-<polygon points="280,680 293,672 293,688" fill="#2e7d32"/>
+<rect x="296" y="672" width="394.0" height="16" fill="#2e7d32"/>
+<polygon points="280,680 296,672 296,688" fill="#2e7d32"/>
+<rect x="680.0" y="672" width="10" height="16" rx="4" fill="#2e7d32"/>
 <text x="246" y="684" font-size="11.5" fill="#333" text-anchor="end">Period E: nur Ende (Start unbekannt)</text>
 <path d="M 1074 680 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
-<rect x="280" y="706" width="760" height="16" rx="4" fill="#c62828"/>
-<polygon points="280,714 293,706 293,722" fill="#c62828"/>
-<polygon points="1040,714 1027,706 1027,722" fill="#c62828"/>
+<rect x="296" y="706" width="728" height="16" fill="#c62828"/>
+<polygon points="280,714 296,706 296,722" fill="#c62828"/>
+<polygon points="1040,714 1024,706 1024,722" fill="#c62828"/>
 <text x="246" y="718" font-size="11.5" fill="#333" text-anchor="end">Period F: weder Start noch Ende bekannt</text>
 <line x1="1075" y1="707" x2="1089" y2="721" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="721" x2="1089" y2="707" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
-<rect x="30" y="756" width="18" height="14" rx="3" fill="#2e7d32"/><text x="54" y="768" font-size="12.5" fill="#333">Treffer</text><rect x="130" y="756" width="18" height="14" rx="3" fill="#c62828"/><text x="154" y="768" font-size="12.5" fill="#333">kein Treffer</text></svg>
\ No newline at end of file
+<rect x="30" y="756" width="18" height="14" rx="3" fill="#2e7d32"/><text x="54" y="768" font-size="12.5" fill="#333">Treffer</text><rect x="130" y="756" width="18" height="14" rx="3" fill="#c62828"/><text x="154" y="768" font-size="12.5" fill="#333">kein Treffer</text>
+</svg>
\ No newline at end of file