# zoom in 25X on the region from 910-930kb
new r1 load user-feat-fmin=915000,user-feat-fmax=930000,user-feat-type=roi
new ss1 scaled-segment-list scale=25,feat-type=roi

coords
small-cgap
genes
small-cgap
# decrease graph_max from 100 to 50, increase graph_min to 25
# and increase heightf from 0.07 to 0.15:
%GC0-100 graph_max=50,graph_min=25,heightf=0.15,outerf=0.65,window-size=1000
# add a label to make it clear what's going on:
medium-label label-text=Percent GC: 25%-50%

# highlight and label the zoomed region
new h1 rectangle innerf=0,outerf=1.1,opacity=0.2,color1=purple,feat-type=roi
coords outerf=1.1,fmin=915000,fmax=930000,tick-interval=1000,label-interval=5000,no-circle=1,label-units=kb,label-type=horizontal
large-label innerf=0.4,label-text=25X,label-position=922500,label-type=horizontal
medium-label innerf=0.7,label-type=spoke,label-function=locus,overlapping-feat-type=roi,feat-type=gene,packer=none,heightf=0.04