tdf#158250 Vivid, Piano templates: replace pictures

Contribution from Jérôme Bouat
Replace pictures with grey level

Change-Id: Ib8522871404261e81c25b50ac1ee073058e0dce5
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/160533
Tested-by: Jenkins
Reviewed-by: Laurent Balland <laurent.balland@mailo.fr>
diff --git a/extras/source/templates/presnt/Piano/Pictures/100000000000035400000120266623530F1969D0.png b/extras/source/templates/presnt/Piano/Pictures/100000000000035400000120266623530F1969D0.png
index df16d70..4755736 100644
--- a/extras/source/templates/presnt/Piano/Pictures/100000000000035400000120266623530F1969D0.png
+++ b/extras/source/templates/presnt/Piano/Pictures/100000000000035400000120266623530F1969D0.png
Binary files differ
diff --git a/extras/source/templates/presnt/Vintage/Pictures/10000000000000580000001F99D2A38C014B254B.png b/extras/source/templates/presnt/Vintage/Pictures/10000000000000580000001F99D2A38C014B254B.png
index 51f498c..a726414 100644
--- a/extras/source/templates/presnt/Vintage/Pictures/10000000000000580000001F99D2A38C014B254B.png
+++ b/extras/source/templates/presnt/Vintage/Pictures/10000000000000580000001F99D2A38C014B254B.png
Binary files differ