Hi, I uploaded a new lmtx version. The update mostly concerns part of the low level mp-tex interface, a side effect of updating some mechanisms (one of which MF currently is extending). Hopefully it won't break users code that uses low level mp-tex interface features but anyway, if needed, adapting is not hard and gives nicer code, as in: \startuseMPgraphic{foo1} fill fullcircle scaled \MPvar{size} withcolor \MPvar{color} ; \stopuseMPgraphic which now becomes: \startuseMPgraphic{foo2} fill fullcircle scaled mpvard("size") withcolor mpvars "color" ; \stopuseMPgraphic or even can be: \startuseMPgraphic{foo3} fill fullcircle scaled mpvar "size" withcolor mpvar "color" ; \stopuseMPgraphic where numerics, dimensions and strings are figured out automatically: \newdimen\mydimen \mydimen=1cm \useMPgraphic{foo1}{size=\mydimen,color=red} \useMPgraphic{foo2}{size=2\mydimen,color=green} \useMPgraphic{foo3}{size=3cm,color=blue} So it (still) works (even better) with registers and such. The fundamental difference is that \MPvar pushes the value of a variable from tex to mp (after some analysis) and that mpvar pulls the value from the mp end (with some help of the lua interface). New is that we have inheritance \setupMPvariables[foo3][size=1cm,color=yellow] \useMPgraphic{foo3} \setupMPvariables[foo1][foo3][size=2cm] \useMPgraphic{foo1} Another experiment, already active on my machine for a while, is this: \enabledirectives[metapost.text.fasttrack] which can be a bit more efficient wrt texts. Another pending change is getting rid of colorhack, which you can try with: \enableexperiments[disablecolorhack] Yet another (already mentioned) experiment users can (should) play with is \enableexperiments[simplegroups] And of course there are: \enableexperiments[fonts.compact] and the less fundamental (and more experimental too): \enabledirectives[fonts.injections.method=advance] At some point compact mode can become the default which then can trigger some low level code removal ... of course some sentimental issue because throwing away code that has been around for a long time, has evolved to be efficient and work well, can hurt but in the end nicer new code wins. Finally I want to remember overload protection: \enabledirectives[overloadmode=warning] or even \enabledirectives[overloadmode=error] just in case you want to check if your own macros clash or harm the system. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------