Yes

Look at issues on Rebane repo
Review locale jsons, strings such as preprocessing, source existing locale strings for others

Maybe

CLI
'Edit' mode for colour replacements etc: issue #124
Compositing for mapdat images when uploaded image has transparency and preprocessing background enabled
Linear / none interpolation option for small uploads if easy
2.5D maps (jkascpkmc's Fox for inspo)
Flammable parameter glass layer
View online on mobile (low priority)

tools/addColoursJSONColourSet.py use ImageMagick to update tools/Palette*.png
tools/addColoursJSONBlock.py update textures size in viewOnline.js automatically