Looking at standard cell layout from the bottom up: Is a metal1 supply line width of .49 um in the

.mag

representation of sky130_fd_sc_ls__inv_1 correct or just sloppiness, and it should be 0.5 um instead?

The mag files of the standard cells were created from the gds data. Is the gds data also 0.49um?

You forced me to start klayout instead of magic … and, indeed, if I understood the ruler function correclty, the standard cell metal line width is .49um. Thanks!