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OpenLayers - how to create 2 different colors from one color?

If you check the the openlayers documentation for the asArray function, it says that the results get cached. So your two results are indeed referring to the same object and should not be edited. If ...
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4 votes
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QGIS - list with clear name colours

QGIS uses Qt for its graphical rendering (among other things). https://doc.qt.io/qt-6/qcolor.html#setNamedColor points to https://www.w3.org/TR/SVG11/types.html#ColorKeywords so I expect that to be a ...
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2 votes
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Extract Raster Value around point on QGIS

Buffer the points to create polygons with specified radius Zonal Statistics or Zonal Histogram, depending of what kind of output you want
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Changing color of all layers in geopackage at once in QGIS

Go to Project Properties - Styles, set Default Symbols. Set them and Untick "Assign random colors to symbols", readd the layers. Or, set the style of one of each point/line/polygon layer, ...
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