I'm aware that one can use \tikzstyle{every label}=[...] to apply styles to every label within a tikzpicture; or \tikzset{mystyle/.style={...}} to apply style specs to a specific type of node mystyle (from this answer); however, I'm having trouble finding style specs that meet my needs, mostly because I don't know what types of options are valid TikZ and what aren't.
For example, I wanted the labels x, y, and z in the take-grant diagram below to be in bold roman type, but not the labels on the edges. It turned out that adding the \tikzstyle{every label}=[font=\bfseries] was what I needed, but it took a lot of mostly fruitless searching before I found that. Is there a concise resource which lists all of the style specs one can use?
More generally, although the TikZ manual gives lots of thorough examples of using options for nodes, paths, and styles, it does not appear to be comprehensive. Am I missing something? Are there better resources for enumerating options in general?
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{arrows,topaths}
\begin{document}
\begin{tikzpicture}[>=stealth',semithick,auto]
\tikzstyle{subj} = [circle, minimum width=8pt, fill, inner sep=0pt]
\tikzstyle{obj} = [circle, minimum width=8pt, draw, inner sep=0pt]
\tikzstyle{dc} = [circle, minimum width=8pt, draw, inner sep=0pt, path picture={\draw (path picture bounding box.south east) -- (path picture bounding box.north west) (path picture bounding box.south west) -- (path picture bounding box.north east);}]
\tikzstyle{every label}=[font=\bfseries]
% Before diagram .........................
\node[obj, label=below:x] (xa) at (0,0) {};
\node[subj, label=below:z] (za) at (1,0) {};
\node[dc, label=below:y] (ya) at (2,0) {};
\path[->] (za) edge node[swap] {$t$} (xa)
edge node {$\alpha$} (ya);
\node at (3,0) {$\vdash^{*}$};
% After diagram .........................
\node[obj, label=below:x] (xb) at (4,0) {};
\node[subj, label=below:z] (zb) at (5,0) {};
\node[dc, label=below:y] (yb) at (6,0) {};
\path[->] (zb) edge node[swap] {$t$} (xb)
edge node {$\alpha$} (yb)
(xb) edge[bend left=60] node {$\alpha$} (yb);
\end{tikzpicture}
\end{document}
lemmaon my end of things (which doesn't yet have any text, so I didn't notice it was italicizing everything). Edited the question and output accordingly. Though the specific problem is solved, the underlying question still remains. – Tim Parenti Jan 24 '13 at 02:36\tikzstyleonly sets/.style, there are many more handlers.) – Qrrbrbirlbel Jan 24 '13 at 02:43draw[=<colour specification>], what counts as<colour specification>? – Tim Parenti Jan 24 '13 at 02:52(x)colorbecause these specifications are just forwarded to the underlying color engine. Although there are many examples in the TikZ manual, thexcolormanual probably offers you more help. – Qrrbrbirlbel Jan 24 '13 at 03:09\tikzstyle{<name of style>}=[<stuff>]does nothing else than\tiktset{<name of style>/.style={<stuff>}}. So you could actually applyevery label/.style={font=\bfseries}to a node with labels, to a path with nodes with labels, to a scope with nodes with labels or …. In the case of theevery node/.stylethere is even a short-cut: thenodeskey. Issuingnodes=<stuff>does nothing else butevery node/.style={<stuff>}. Conclusion: Oftentimes keys are short-cuts to other keys and nest deeply . – Qrrbrbirlbel Jan 24 '13 at 03:15