Add a background image

[hampelm]

No description provided.

[hampelm]

Hrm...

2022-08-30T02:59:20.301704733Z FATAL ERROR: v8::ToLocalChecked Empty MaybeLocal.
2022-08-30T02:59:20.335336712Z  1: 0xb6e260 node::Abort() [/usr/local/bin/node]
2022-08-30T02:59:20.336211929Z  2: 0xa7ccdb node::FatalError(char const*, char const*) [/usr/local/bin/node]
2022-08-30T02:59:20.337302507Z  3: 0xd45c1a v8::Utils::ReportApiFailure(char const*, char const*) [/usr/local/bin/node]
2022-08-30T02:59:20.337426458Z  4: 0x7fc45403b8ed Context2d::CreatePattern(Nan::FunctionCallbackInfo<v8::Value> const&) [/opt/tiles/node_modules/nodetiles-core/node_modules/canvas/build/Release/canvas.node]
2022-08-30T02:59:20.337455818Z  5: 0x7fc454036458  [/opt/tiles/node_modules/nodetiles-core/node_modules/canvas/build/Release/canvas.node]
2022-08-30T02:59:20.338454756Z  6: 0xda3f80  [/usr/local/bin/node]
2022-08-30T02:59:20.339530064Z  7: 0xda54bf v8::internal::Builtin_HandleApiCall(int, unsigned long*, v8::internal::Isolate*) [/usr/local/bin/node]
2022-08-30T02:59:20.340824574Z  8: 0x16e79b9  [/usr/local/bin/node]

[hampelm]

2022-08-30T03:25:18.589662684Z TypeError: Right-hand side of 'instanceof' is not an object
2022-08-30T03:25:18.589666954Z     at renderInstance (/opt/tiles/node_modules/nodetiles-core/lib/cartoRenderer.js:825:27)
2022-08-30T03:25:18.589670924Z     at /opt/tiles/node_modules/nodetiles-core/lib/cartoRenderer.js:1063:11
2022-08-30T03:25:18.589674704Z     at Array.forEach (<anonymous>)
2022-08-30T03:25:18.589679264Z     at /opt/tiles/node_modules/nodetiles-core/lib/cartoRenderer.js:697:17
2022-08-30T03:25:18.589683014Z     at Array.forEach (<anonymous>)
2022-08-30T03:25:18.589686874Z     at cartoImageRenderer (/opt/tiles/node_modules/nodetiles-core/lib/cartoRenderer.js:691:10)
2022-08-30T03:25:18.589690504Z     at exports.renderImage (/opt/tiles/node_modules/nodetiles-core/lib/cartoRenderer.js:62:3)
2022-08-30T03:25:18.589694194Z     at Map.<anonymous> (/opt/tiles/node_modules/nodetiles-core/lib/Map.js:48:24)
2022-08-30T03:25:18.589698044Z     at /opt/tiles/node_modules/nodetiles-core/node_modules/async/lib/async.js:232:13
2022-08-30T03:25:18.589714504Z     at /opt/tiles/node_modules/nodetiles-core/node_modules/async/lib/async.js:119:25

Going to debug this not at a distance some other time.