Dark Matter map theme: low contrast, hard to read since v0.7.0 #215

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opened 2026-10-04 23:04:24 +02:00 by adam · 4 comments
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Since switching to CARTO Dark Matter tiles (#831, v0.7.0), the map has become hard to read for our members of the MeshRheinland community. In v0.6.3 a grayscale filter (grayscale/invert/brightness) provided sufficient contrast; since the tile swap this filter was removed entirely, so node markers, labels, and road outlines blend into the near-black background.

Comparison (0.6.3 right, 0.7.x left):

Expected behavior: Map with adequate contrast between tiles, labels, and node markers, similar to v0.6.3.

Suggestion: Reintroduce a brightness/contrast filter on the CARTO tiles, or test alternative tile opacity/filter values suited to the new basemap.

<img width="1600" height="411" alt="Image" src="https://github.com/user-attachments/assets/72b5e17f-6226-4467-9575-a13c42d9cba3" /> Since switching to CARTO Dark Matter tiles (#831, v0.7.0), the map has become hard to read for our members of the MeshRheinland community. In v0.6.3 a grayscale filter (`grayscale`/`invert`/`brightness`) provided sufficient contrast; since the tile swap this filter was removed entirely, so node markers, labels, and road outlines blend into the near-black background. **Comparison (0.6.3 right, 0.7.x left):** **Expected behavior:** Map with adequate contrast between tiles, labels, and node markers, similar to v0.6.3. **Suggestion:** Reintroduce a brightness/contrast filter on the CARTO tiles, or test alternative tile opacity/filter values suited to the new basemap. <!-- github-sync-id:4856021826 -->
adam closed this issue 2026-10-04 23:04:24 +02:00
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+1
maybe day/night theme as an idea? and provide the way to customise map layer

+1 maybe day/night theme as an idea? and provide the way to customise map layer <!-- github-comment-id:4970721356 -->
Author
Owner

Yeah, I will revert this.

Yeah, I will revert this. <!-- github-comment-id:5010386797 -->
Author
Owner

Please preview the fix here: https://dweb.potatomesh.net/

This now only falls back to CARTO if open street map is down.

Please preview the fix here: https://dweb.potatomesh.net/ This now only falls back to CARTO if open street map is down. <!-- github-comment-id:5010890742 -->
Author
Owner

Great work! Thanks for your effort!

Great work! Thanks for your effort! <!-- github-comment-id:5011199640 -->
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Reference: adam/potato-mesh#215