Merge branch 'Improvements' into 'master'

Improves font sizes on chart axes and legend. Issue ~/issues/2

See merge request !5
3 jobs for master in 3 minutes and 47 seconds (queued for 7 seconds)
latest
Name Stage Failure
failed
astrocyte_test Test
--2021-09-23 15:39:24--  https://usegalaxy.org/dataset/display?dataset_id=2979743ceed4f520&to_ext=fastqsanger
Resolving proxy.swmed.edu (proxy.swmed.edu)... 129.112.115.42, 129.112.115.40, 129.112.115.53, ...
Connecting to proxy.swmed.edu (proxy.swmed.edu)|129.112.115.42|:3128... connected.
Proxy request sent, awaiting response... 502 Bad Gateway
2021-09-23 15:41:09 ERROR 502: Bad Gateway.

Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit status 1